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The Study of Electron Acoustic Waves (EAWs) in Non-thermal Plasma. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07043-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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2
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Hatami MM. Investigation of sheath properties in a warm plasma with two kappa-distributed electrons and monoenergetic electron beam. Sci Rep 2022; 12:4654. [PMID: 35301369 PMCID: PMC8931083 DOI: 10.1038/s41598-022-08436-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/28/2022] [Indexed: 11/10/2022] Open
Abstract
Sheath formation criterion of an electropositive plasma consisting of singly charged positive ions, two kappa-distributed electron species with different effective temperatures and a monoenergetic electron beam is investigated by the Sagdeev potential approach. Using this criterion, effects of electron beam, superthermality of electron species as well as temperature and concentration of positive ions on the sheath properties are studied numerically. It is shown that the temperature of positive ions, concentration and superthermality of electron species and presence of electron beam affect Bohm velocity of positive ions. Also, it is observed that density distribution of the charged particles and sheath thickness increase in the presence of electron beam. In addition, it is found that with increasing the ion temperature, the sheath width and density distribution of the charged particles in the sheath area decrease.
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Affiliation(s)
- M M Hatami
- Physics Department of K. N. Toosi University of Technology, Tehran, 15418-49611, Iran.
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3
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Kollmann P, Roussos E, Paranicas C, Woodfield EE, Mauk BH, Clark G, Smith DC, Vandegriff J. Electron Acceleration to MeV Energies at Jupiter and Saturn. JOURNAL OF GEOPHYSICAL RESEARCH. SPACE PHYSICS 2018; 123:9110-9129. [PMID: 30775196 PMCID: PMC6360449 DOI: 10.1029/2018ja025665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/16/2018] [Accepted: 09/24/2018] [Indexed: 06/09/2023]
Abstract
The radiation belts and magnetospheres of Jupiter and Saturn show significant intensities of relativistic electrons with energies up to tens of megaelectronvolts (MeV). To date, the question on how the electrons reach such high energies is not fully answered. This is largely due to the lack of high-quality electron spectra in the MeV energy range that models could be fit to. We reprocess data throughout the Galileo orbiter mission in order to derive Jupiter's electron spectra up to tens of MeV. In the case of Saturn, the spectra from the Cassini orbiter are readily available and we provide a systematic analysis aiming to study their acceleration mechanisms. Our analysis focuses on the magnetospheres of these planets, at distances of L > 20 and L > 4 for Jupiter and Saturn, respectively, where electron intensities are not yet at radiation belt levels. We find no support that MeV electrons are dominantly accelerated by wave-particle interactions in the magnetospheres of both planets at these distances. Instead, electron acceleration is consistent with adiabatic transport. While this is a common assumption, confirmation of this fact is important since many studies on sources, losses, and transport of energetic particles rely on it. Adiabatic heating can be driven through various radial transport mechanisms, for example, injections driven by the interchange instability or radial diffusion. We cannot distinguish these processes at Saturn with our technique. For Jupiter, we suggest that the dominating acceleration process is radial diffusion because injections are never observed at MeV energies.
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Affiliation(s)
- P. Kollmann
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
| | - E. Roussos
- Max Planck Institute for Solar System ResearchGóttingenGermany
| | - C. Paranicas
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
| | | | - B. H. Mauk
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
| | - G. Clark
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
| | - D. C. Smith
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
| | - J. Vandegriff
- The Johns Hopkins University, Applied Physics LaboratoryLaurelMDUSA
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4
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Coates AJ, Wellbrock A, Waite JH, Jones GH. A new upper limit to the field-aligned potential near Titan. GEOPHYSICAL RESEARCH LETTERS 2015; 42:4676-4684. [PMID: 27609997 PMCID: PMC4994318 DOI: 10.1002/2015gl064474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 05/22/2015] [Indexed: 06/06/2023]
Abstract
Neutral particles dominate regions of the Saturn magnetosphere and locations near several of Saturn's moons. Sunlight ionizes neutrals, producing photoelectrons with characteristic energy spectra. The Cassini plasma spectrometer electron spectrometer has detected photoelectrons throughout these regions, where photoelectrons may be used as tracers of magnetic field morphology. They also enhance plasma escape by setting up an ambipolar electric field, since the relatively energetic electrons move easily along the magnetic field. A similar mechanism is seen in the Earth's polar wind and at Mars and Venus. Here we present a new analysis of Titan photoelectron data, comparing spectra measured in the sunlit ionosphere at ~1.4 Titan radii (RT) and at up to 6.8 RT away. This results in an upper limit on the potential of 2.95 V along magnetic field lines associated with Titan at up to 6.8 RT, which is comparable to some similar estimates for photoelectrons seen in Earth's magnetosphere.
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Affiliation(s)
- Andrew J Coates
- Mullard Space Science Laboratory University College London London UK; Centre for Planetary Sciences at UCL/Birkbeck London UK
| | - Anne Wellbrock
- Mullard Space Science Laboratory University College London London UK; Centre for Planetary Sciences at UCL/Birkbeck London UK
| | | | - Geraint H Jones
- Mullard Space Science Laboratory University College London London UK; Centre for Planetary Sciences at UCL/Birkbeck London UK
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5
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Delaunay R, Gatchell M, Rousseau P, Domaracka A, Maclot S, Wang Y, Stockett MH, Chen T, Adoui L, Alcamí M, Martín F, Zettergren H, Cederquist H, Huber BA. Molecular Growth Inside of Polycyclic Aromatic Hydrocarbon Clusters Induced by Ion Collisions. J Phys Chem Lett 2015; 6:1536-42. [PMID: 26263308 DOI: 10.1021/acs.jpclett.5b00405] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The present work combines experimental and theoretical studies of the collision between keV ion projectiles and clusters of pyrene, one of the simplest polycyclic aromatic hydrocarbons (PAHs). Intracluster growth processes induced by ion collisions lead to the formation of a wide range of new molecules with masses larger than that of the pyrene molecule. The efficiency of these processes is found to strongly depend on the mass and velocity of the incoming projectile. Classical molecular dynamics simulations of the entire collision process-from the ion impact (nuclear scattering) to the formation of new molecular species-reproduce the essential features of the measured molecular growth process and also yield estimates of the related absolute cross sections. More elaborate density functional tight binding calculations yield the same growth products as the classical simulations. The present results could be relevant to understand the physical chemistry of the PAH-rich upper atmosphere of Saturn's moon Titan.
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Affiliation(s)
- Rudy Delaunay
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
- ‡Université de Caen Basse-Normandie, Esplanade de la Paix, CS 14032, 14032 Caen cedex 5, France
| | - Michael Gatchell
- ¶Department of Physics, Stockholm University, AlbaNova University Center, S-10691 Stockholm, Sweden
| | - Patrick Rousseau
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
- ‡Université de Caen Basse-Normandie, Esplanade de la Paix, CS 14032, 14032 Caen cedex 5, France
| | - Alicja Domaracka
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
| | - Sylvain Maclot
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
- ‡Université de Caen Basse-Normandie, Esplanade de la Paix, CS 14032, 14032 Caen cedex 5, France
| | - Yang Wang
- ∥Instituto Madrileño de Estudios Avanzados en Nanociencias (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain
| | - Mark H Stockett
- ¶Department of Physics, Stockholm University, AlbaNova University Center, S-10691 Stockholm, Sweden
| | - Tao Chen
- ¶Department of Physics, Stockholm University, AlbaNova University Center, S-10691 Stockholm, Sweden
| | - Lamri Adoui
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
- ‡Université de Caen Basse-Normandie, Esplanade de la Paix, CS 14032, 14032 Caen cedex 5, France
| | - Manuel Alcamí
- ∥Instituto Madrileño de Estudios Avanzados en Nanociencias (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain
| | - Fernando Martín
- ∥Instituto Madrileño de Estudios Avanzados en Nanociencias (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain
| | - Henning Zettergren
- ¶Department of Physics, Stockholm University, AlbaNova University Center, S-10691 Stockholm, Sweden
| | - Henrik Cederquist
- ¶Department of Physics, Stockholm University, AlbaNova University Center, S-10691 Stockholm, Sweden
| | - Bernd A Huber
- †CIMAP (UMR6252 CEA/CNRS/Ensicaen/Unicaen), Bd Henri Becquerel, BP 5133, 14070 Caen cedex 5, France
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6
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Jackman CM, Thomsen MF, Mitchell DG, Sergis N, Arridge CS, Felici M, Badman SV, Paranicas C, Jia X, Hospodarksy GB, Andriopoulou M, Khurana KK, Smith AW, Dougherty MK. Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: Evidence of quasi-steady reconnection. JOURNAL OF GEOPHYSICAL RESEARCH. SPACE PHYSICS 2015; 120:3603-3617. [PMID: 27570722 PMCID: PMC4981121 DOI: 10.1002/2015ja020995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 04/01/2015] [Accepted: 04/01/2015] [Indexed: 05/20/2023]
Abstract
We present a case study of an event from 20 August (day 232) of 2006, when the Cassini spacecraft was sampling the region near 32 RS and 22 h LT in Saturn's magnetotail. Cassini observed a strong northward-to-southward turning of the magnetic field, which is interpreted as the signature of dipolarization of the field as seen by the spacecraft planetward of the reconnection X line. This event was accompanied by very rapid (up to ~1500 km s-1) thermal plasma flow toward the planet. At energies above 28 keV, energetic hydrogen and oxygen ion flow bursts were observed to stream planetward from a reconnection site downtail of the spacecraft. Meanwhile, a strong field-aligned beam of energetic hydrogen was also observed to stream tailward, likely from an ionospheric source. Saturn kilometric radiation emissions were stimulated shortly after the observation of the dipolarization. We discuss the field, plasma, energetic particle, and radio observations in the context of the impact this reconnection event had on global magnetospheric dynamics.
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Affiliation(s)
- C. M. Jackman
- School of Physics and AstronomyUniversity of SouthamptonSouthamptonUK
| | | | - D. G. Mitchell
- The Johns Hopkins University Applied Physics LaboratoryLaurelMarylandUSA
| | | | | | - M. Felici
- Department of PhysicsLancaster UniversityBailriggUK
- Mullard Space Science LaboratoryUniversity College LondonSurreyUK
- The Centre for Planetary Sciences at UCL/BirkbeckLondonUK
| | - S. V. Badman
- Department of PhysicsLancaster UniversityBailriggUK
| | - C. Paranicas
- The Johns Hopkins University Applied Physics LaboratoryLaurelMarylandUSA
| | - X. Jia
- Atmospheric, Oceanic and Space SciencesUniversity of MichiganAnn ArborMichiganUSA
| | - G. B. Hospodarksy
- Department of Physics and AstronomyUniversity of IowaIowa CityIowaUSA
| | - M. Andriopoulou
- Space Research InstituteAustrian Academy of SciencesGrazAustria
| | - K. K. Khurana
- Institute of Geophysics and Planetary PhysicsUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - A. W. Smith
- School of Physics and AstronomyUniversity of SouthamptonSouthamptonUK
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7
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WANG Y, CHEN CX. The Source of Saturn's Kilometric Radiation and the Magnetic Field Line's Spirality. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/cjg2.1070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Garnier P, Wahlund JE, Holmberg MKG, Morooka M, Grimald S, Eriksson A, Schippers P, Gurnett DA, Krimigis SM, Krupp N, Coates A, Crary F, Gustafsson G. The detection of energetic electrons with the Cassini Langmuir probe at Saturn. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011ja017298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Liu X, Hill TW. Effects of finite plasma pressure on centrifugally driven convection in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012ja017827] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Fleshman BL, Delamere PA, Bagenal F, Cassidy T. The roles of charge exchange and dissociation in spreading Saturn's neutral clouds. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011je003996] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Schippers P, André N, Gurnett DA, Lewis GR, Persoon AM, Coates AJ. Identification of electron field-aligned current systems in Saturn's magnetosphere. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011ja017352] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Morooka MW, Wahlund JE, Eriksson AI, Farrell WM, Gurnett DA, Kurth WS, Persoon AM, Shafiq M, André M, Holmberg MKG. Dusty plasma in the vicinity of Enceladus. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011ja017038] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Hsu HW, Postberg F, Kempf S, Trieloff M, Burton M, Roy M, Moragas-Klostermeyer G, Srama R. Stream particles as the probe of the dust-plasma-magnetosphere interaction at Saturn. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011ja016488] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- H.-W. Hsu
- MPI für Kernphysik; Heidelberg Germany
- Institut für Geowissenschaften; Ruprecht-Karls Universität; Heidelberg Germany
- Laboratory for Atmospheric and Space Physics; University of Colorado; Boulder Colorado USA
| | - F. Postberg
- MPI für Kernphysik; Heidelberg Germany
- Institut für Geowissenschaften; Ruprecht-Karls Universität; Heidelberg Germany
| | - S. Kempf
- MPI für Kernphysik; Heidelberg Germany
- Laboratory for Atmospheric and Space Physics; University of Colorado; Boulder Colorado USA
- Institut für Geophysik und Extraterrestrische Physik; Universität Braunschweig; Braunschweig Germany
| | - M. Trieloff
- Institut für Geowissenschaften; Ruprecht-Karls Universität; Heidelberg Germany
| | - M. Burton
- Jet Propulsion Laboratory; Pasadena California USA
| | - M. Roy
- Jet Propulsion Laboratory; Pasadena California USA
| | - G. Moragas-Klostermeyer
- MPI für Kernphysik; Heidelberg Germany
- Laboratory for Atmospheric and Space Physics; University of Colorado; Boulder Colorado USA
| | - R. Srama
- MPI für Kernphysik; Heidelberg Germany
- Institut für Raumfahrtsysteme; Universität Stuttgart; Stuttgart Germany
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14
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Richard MS, Cravens TE, Robertson IP, Waite JH, Wahlund JE, Crary FJ, Coates AJ. Energetics of Titan's ionosphere: Model comparisons with Cassini data. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011ja016603] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. S. Richard
- Department of Physics and Astronomy; University of Kansas; Lawrence Kansas USA
| | - T. E. Cravens
- Department of Physics and Astronomy; University of Kansas; Lawrence Kansas USA
| | - I. P. Robertson
- Department of Physics and Astronomy; University of Kansas; Lawrence Kansas USA
| | - J. H. Waite
- Southwest Research Institute; San Antonio Texas USA
| | | | - F. J. Crary
- Southwest Research Institute; San Antonio Texas USA
| | - A. J. Coates
- Mullard Space Science Laboratory, Holmbury St. Mary; University College London; Dorking, Surrey UK
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15
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Jackman CM, Arridge CS. Statistical properties of the magnetic field in the Kronian magnetotail lobes and current sheet. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010ja015973] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C. M. Jackman
- Blackett Laboratory; Imperial College London; London UK
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences at UCL/Birkbeck; London UK
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16
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Kollmann P, Roussos E, Paranicas C, Krupp N, Jackman CM, Kirsch E, Glassmeier KH. Energetic particle phase space densities at Saturn: Cassini observations and interpretations. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010ja016221] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- P. Kollmann
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
- Institut für Geophysik und Extraterrestrische Physik; Technische Universität Braunschweig; Braunschweig Germany
| | - E. Roussos
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
| | - C. Paranicas
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - N. Krupp
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
| | - C. M. Jackman
- Department of Physics and Astronomy; University College London; London UK
| | - E. Kirsch
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
| | - K.-H. Glassmeier
- Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany
- Institut für Geophysik und Extraterrestrische Physik; Technische Universität Braunschweig; Braunschweig Germany
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17
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Schippers P, Arridge CS, Menietti JD, Gurnett DA, Lamy L, Cecconi B, Mitchell DG, André N, Kurth WS, Grimald S, Dougherty MK, Coates AJ, Krupp N, Young DT. Auroral electron distributions within and close to the Saturn kilometric radiation source region. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011ja016461] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- P. Schippers
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; Holmbury St. Mary UK
- Centre for Planetary Sciences at UCL/Birkbeck; London WC1E 6BT UK
| | - J. D. Menietti
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - D. A. Gurnett
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - L. Lamy
- Department of Space and Atmospheric Physics; Imperial College; London UK
- LESIA, CNRS; Observatoire de Meudon; Meudon France
| | - B. Cecconi
- LESIA, CNRS; Observatoire de Meudon; Meudon France
| | - D. G. Mitchell
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - N. André
- Centre d'Étude Spatiale des Rayonnements; Université de Toulouse, UPS; Toulouse France
- CNRS UMR 5187; Toulouse France
| | - W. S. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - S. Grimald
- Centre d'Étude Spatiale des Rayonnements; Université de Toulouse, UPS; Toulouse France
- CNRS UMR 5187; Toulouse France
| | - M. K. Dougherty
- Department of Space and Atmospheric Physics; Imperial College; London UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Holmbury St. Mary UK
- Centre for Planetary Sciences at UCL/Birkbeck; London WC1E 6BT UK
| | - N. Krupp
- Max-Planck-Institut fur Sonnensystemforschung; Katlenburg-Lindau Germany
| | - D. T. Young
- Southwest Research Institute; San Antonio Texas USA
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18
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Talboys DL, Bunce EJ, Cowley SWH, Arridge CS, Coates AJ, Dougherty MK. Statistical characteristics of field-aligned currents in Saturn's nightside magnetosphere. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010ja016102] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- D. L. Talboys
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - E. J. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; London UK
- Centre for Planetary Sciences at UCL/Birkbeck; London UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; London UK
- Centre for Planetary Sciences at UCL/Birkbeck; London UK
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19
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Liu X, Hill TW, Wolf RA, Sazykin S, Spiro RW, Wu H. Numerical simulation of plasma transport in Saturn's inner magnetosphere using the Rice Convection Model. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015859] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- X. Liu
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - T. W. Hill
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - R. A. Wolf
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - S. Sazykin
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - R. W. Spiro
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - H. Wu
- Shell International Exploration and Production; Houston Texas USA
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20
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Smith HT, Johnson RE, Perry ME, Mitchell DG, McNutt RL, Young DT. Enceladus plume variability and the neutral gas densities in Saturn's magnetosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009ja015184] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- H. T. Smith
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - R. E. Johnson
- Materials Science and Engineering Department; University of Virginia; Charlottesville Virginia USA
| | - M. E. Perry
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - D. G. Mitchell
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - R. L. McNutt
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - D. T. Young
- Division of Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
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21
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Bunce EJ, Cowley SWH, Talboys DL, Dougherty MK, Lamy L, Kurth WS, Schippers P, Cecconi B, Zarka P, Arridge CS, Coates AJ. Extraordinary field-aligned current signatures in Saturn's high-latitude magnetosphere: Analysis of Cassini data during Revolution 89. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015612] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E. J. Bunce
- Department of Physics & Astronomy; University of Leicester; Leicester UK
| | - S. W. H. Cowley
- Department of Physics & Astronomy; University of Leicester; Leicester UK
| | - D. L. Talboys
- Department of Physics & Astronomy; University of Leicester; Leicester UK
| | | | - L. Lamy
- Blackett Laboratory; Imperial College; London UK
| | - W. S. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - P. Schippers
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - B. Cecconi
- LESIA, CNRS; Observatoire de Paris; Meudon France
| | - P. Zarka
- LESIA, CNRS; Observatoire de Paris; Meudon France
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences at UCL/Birkbeck; London UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences at UCL/Birkbeck; London UK
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22
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DeJong AD, Burch JL, Goldstein J, Coates AJ, Young DT. Low-energy electrons in Saturn's inner magnetosphere and their role in interchange injections. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. D. DeJong
- Southwest Research Institute; San Antonio Texas USA
| | - J. L. Burch
- Southwest Research Institute; San Antonio Texas USA
| | - J. Goldstein
- Southwest Research Institute; San Antonio Texas USA
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - D. T. Young
- Southwest Research Institute; San Antonio Texas USA
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23
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Thomsen MF, Reisenfeld DB, Delapp DM, Tokar RL, Young DT, Crary FJ, Sittler EC, McGraw MA, Williams JD. Survey of ion plasma parameters in Saturn's magnetosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015267] [Citation(s) in RCA: 207] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. F. Thomsen
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | | | - D. M. Delapp
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - R. L. Tokar
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - D. T. Young
- Southwest Research Institute; San Antonio Texas USA
| | - F. J. Crary
- Southwest Research Institute; San Antonio Texas USA
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24
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Chen Y, Hill TW, Rymer AM, Wilson RJ. Rate of radial transport of plasma in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010ja015412] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. Chen
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - A. M. Rymer
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - R. J. Wilson
- Laboratory for Atmospheric and Space Physics; University of Colorado at Boulder; Boulder Colorado USA
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25
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Grodent D, Radioti A, Bonfond B, Gérard JC. On the origin of Saturn's outer auroral emission. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009ja014901] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Denis Grodent
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Liège Belgium
| | - Aikaterini Radioti
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Liège Belgium
| | - Bertrand Bonfond
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Liège Belgium
| | - Jean-Claude Gérard
- LPAP, Institut d'Astrophysique et de Géophysique; Université de Liège; Liège Belgium
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26
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Andrews DJ, Cowley SWH, Dougherty MK, Provan G. Magnetic field oscillations near the planetary period in Saturn's equatorial magnetosphere: Variation of amplitude and phase with radial distance and local time. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009ja014729] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - G. Provan
- University of Leicester; Leicester UK
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27
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Fleshman BL, Delamere PA, Bagenal F. A sensitivity study of the Enceladus torus. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003372] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Affiliation(s)
- Tamas I. Gombosi
- Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Andrew P. Ingersoll
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
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29
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Talboys DL, Arridge CS, Bunce EJ, Coates AJ, Cowley SWH, Dougherty MK. Characterization of auroral current systems in Saturn's magnetosphere: High-latitude Cassini observations. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013846] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- D. L. Talboys
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - C. S. Arridge
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
| | - E. J. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
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30
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Winglee RM, Snowden D, Kidder A. Modification of Titan's ion tail and the Kronian magnetosphere: Coupled magnetospheric simulations. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013343] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. M. Winglee
- Department of Earth and Space Science; University of Washington; Seattle Washington USA
| | - D. Snowden
- Department of Earth and Space Science; University of Washington; Seattle Washington USA
| | - A. Kidder
- Department of Earth and Space Science; University of Washington; Seattle Washington USA
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31
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Persoon AM, Gurnett DA, Santolik O, Kurth WS, Faden JB, Groene JB, Lewis GR, Coates AJ, Wilson RJ, Tokar RL, Wahlund JE, Moncuquet M. A diffusive equilibrium model for the plasma density in Saturn's magnetosphere. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013912] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. M. Persoon
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - D. A. Gurnett
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - O. Santolik
- Institute of Atmospheric Physics; Prague Czech Republic
- Faculty of Mathematics and Physics; Charles University; Prague Czech Republic
| | - W. S. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - J. B. Faden
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - J. B. Groene
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - G. R. Lewis
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - R. J. Wilson
- Space and Atmospheric Science Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - R. L. Tokar
- Space and Atmospheric Science Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | | | - M. Moncuquet
- Laboratoire d'Etudies Spatiales et Instrumentation en Astrophysique; Observatoire de Paris; Meudon France
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32
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Kellett S, Bunce EJ, Coates AJ, Cowley SWH. Thickness of Saturn's ring current determined from north-south Cassini passes through the current layer. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013942] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S. Kellett
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - E. J. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
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33
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Coates AJ. Interaction of Titan's ionosphere with Saturn's magnetosphere. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2009; 367:773-788. [PMID: 19073464 DOI: 10.1098/rsta.2008.0248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Titan is the only Moon in the Solar System with a significant permanent atmosphere. Within this nitrogen-methane atmosphere, an ionosphere forms. Titan has no significant magnetic dipole moment, and is usually located inside Saturn's magnetosphere. Atmospheric particles are ionized both by sunlight and by particles from Saturn's magnetosphere, mainly electrons, which reach the top of the atmosphere. So far, the Cassini spacecraft has made over 45 close flybys of Titan, allowing measurements in the ionosphere and the surrounding magnetosphere under different conditions. Here we review how Titan's ionosphere and Saturn's magnetosphere interact, using measurements from Cassini low-energy particle detectors. In particular, we discuss ionization processes and ionospheric photoelectrons, including their effect on ion escape from the ionosphere. We also discuss one of the unexpected discoveries in Titan's ionosphere, the existence of extremely heavy negative ions up to 10000amu at 950km altitude.
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Affiliation(s)
- Andrew J Coates
- Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking RH5 6NT, UK.
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34
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Sergis N, Krimigis SM, Mitchell DG, Hamilton DC, Krupp N, Mauk BH, Roelof EC, Dougherty MK. Energetic particle pressure in Saturn's magnetosphere measured with the Magnetospheric Imaging Instrument on Cassini. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013774] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- N. Sergis
- Office for Space Research and Technology; Academy of Athens; Athens Greece
| | - S. M. Krimigis
- Office for Space Research and Technology; Academy of Athens; Athens Greece
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - D. G. Mitchell
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - D. C. Hamilton
- Department of Physics; University of Maryland; College Park Maryland USA
| | - N. Krupp
- Max-Planck-Institut für Sonnensystemforschung; Lindau Germany
| | - B. H. Mauk
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - E. C. Roelof
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - M. K. Dougherty
- Space and Atmospheric Physics Group; Imperial College; London UK
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35
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Mitchell DG, Kurth WS, Hospodarsky GB, Krupp N, Saur J, Mauk BH, Carbary JF, Krimigis SM, Dougherty MK, Hamilton DC. Ion conics and electron beams associated with auroral processes on Saturn. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013621] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- D. G. Mitchell
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - W. S. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - G. B. Hospodarsky
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - N. Krupp
- Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany
| | - J. Saur
- Institut für Geophysik and Meteorologie; Universität zu Köln; Cologne Germany
| | - B. H. Mauk
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - J. F. Carbary
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - S. M. Krimigis
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | | | - D. C. Hamilton
- Department of Astronomy; University of Maryland; College Park Maryland USA
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36
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Kidder A, Winglee RM, Harnett EM. Regulation of the centrifugal interchange cycle in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013100] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Kidder
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | - R. M. Winglee
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | - E. M. Harnett
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
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37
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Dialynas K, Krimigis SM, Mitchell DG, Hamilton DC, Krupp N, Brandt PC. Energetic ion spectral characteristics in the Saturnian magnetosphere using Cassini/MIMI measurements. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008ja013761] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K. Dialynas
- Office for Space Research and Applications; Academy of Athens; Athens Greece
- Department of Astrophysics, Astronomy and Mechanics, Faculty of Physics; National Kapodistrian University of Athens; Athens Greece
| | - S. M. Krimigis
- Office for Space Research and Applications; Academy of Athens; Athens Greece
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - D. G. Mitchell
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - D. C. Hamilton
- Department of Physics; University of Maryland; College Park Maryland USA
| | - N. Krupp
- Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany
| | - P. C. Brandt
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
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38
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Wilson RJ, Tokar RL, Henderson MG, Hill TW, Thomsen MF, Pontius DH. Cassini plasma spectrometer thermal ion measurements in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013486] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. J. Wilson
- Space and Atmospheric Sciences Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - R. L. Tokar
- Space and Atmospheric Sciences Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - M. G. Henderson
- Space and Atmospheric Sciences Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - M. F. Thomsen
- Space and Atmospheric Sciences Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - D. H. Pontius
- Physics Department; Birmingham-Southern College; Birmingham Alabama USA
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39
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Smith HT, Shappirio M, Johnson RE, Reisenfeld D, Sittler EC, Crary FJ, McComas DJ, Young DT. Enceladus: A potential source of ammonia products and molecular nitrogen for Saturn's magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013352] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- H. T. Smith
- Engineering Physics; University of Virginia; Charlottesville Virginia USA
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - M. Shappirio
- NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - R. E. Johnson
- Engineering Physics; University of Virginia; Charlottesville Virginia USA
| | - D. Reisenfeld
- Department of Physics and Astronomy; University of Montana; Missoula Montana USA
| | - E. C. Sittler
- NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - F. J. Crary
- Division of Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
| | - D. J. McComas
- Division of Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
| | - D. T. Young
- Division of Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
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40
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Masters A, Achilleos N, Dougherty MK, Slavin JA, Hospodarsky GB, Arridge CS, Coates AJ. An empirical model of Saturn's bow shock: Cassini observations of shock location and shape. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013276] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Masters
- Space and Atmospheric Physics Group, The Blackett Laboratory; Imperial College London; London UK
| | - N. Achilleos
- Atmospheric Physics Laboratory, Department of Physics and Astronomy; University College London; London UK
| | - M. K. Dougherty
- Space and Atmospheric Physics Group, The Blackett Laboratory; Imperial College London; London UK
| | - J. A. Slavin
- Heliophysics Science Division; NASA GSFC; Greenbelt Maryland USA
| | - G. B. Hospodarsky
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - C. S. Arridge
- Mullard Space Science Laboratory, Department of Space and Climate Physics; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
| | - A. J. Coates
- Mullard Space Science Laboratory, Department of Space and Climate Physics; University College London; Dorking UK
- Centre for Planetary Sciences; University College London; London UK
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41
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Kliore AJ, Nagy AF, Marouf EA, French RG, Flasar FM, Rappaport NJ, Anabttawi A, Asmar SW, Kahann DS, Barbinis E, Goltz GL, Fleischman DU, Rochblatt DJ. First results from the Cassini radio occultations of the Titan ionosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012965] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Avydas J. Kliore
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Andrew F. Nagy
- Space Physics Research Laboratory, University of Michigan; Ann Arbor Michigan USA
| | - Essam A. Marouf
- Department of Electrical Engineering; San Jose State University; San Jose California USA
| | - Richard G. French
- Astronomy Department; Wellesley College; Wellesley Massachusetts USA
| | | | - Nicole J. Rappaport
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Aseel Anabttawi
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Sami W. Asmar
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Daniel S. Kahann
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Elias Barbinis
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Gene L. Goltz
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - Don U. Fleischman
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
| | - David J. Rochblatt
- Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
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42
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Chen Y, Hill TW. Statistical analysis of injection/dispersion events in Saturn's inner magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013166] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. Chen
- Department of Physics and Astronomy; Rice University; Houston Texas USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; Houston Texas USA
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43
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Schippers P, Blanc M, André N, Dandouras I, Lewis GR, Gilbert LK, Persoon AM, Krupp N, Gurnett DA, Coates AJ, Krimigis SM, Young DT, Dougherty MK. Multi-instrument analysis of electron populations in Saturn's magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013098] [Citation(s) in RCA: 297] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- P. Schippers
- Centre d'Etude Spatiale des Rayonnements; CNRS/Université Paul Sabatier; Toulouse France
| | - M. Blanc
- Centre d'Etude Spatiale des Rayonnements; CNRS/Université Paul Sabatier; Toulouse France
| | - N. André
- Research and Scientific Support Department; European Space Agency; Noordwijk Netherlands
| | - I. Dandouras
- Centre d'Etude Spatiale des Rayonnements; CNRS/Université Paul Sabatier; Toulouse France
| | - G. R. Lewis
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - L. K. Gilbert
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - A. M. Persoon
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - N. Krupp
- Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany
| | - D. A. Gurnett
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Dorking UK
| | - S. M. Krimigis
- Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
| | - D. T. Young
- Southwest Research Institute; San Antonio Texas USA
| | - M. K. Dougherty
- Department of Space and Atmospheric Physics; Imperial College London; London UK
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44
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Arridge CS, Russell CT, Khurana KK, Achilleos N, Cowley SWH, Dougherty MK, Southwood DJ, Bunce EJ. Saturn's magnetodisc current sheet. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012540] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- C. S. Arridge
- Mullard Space Science Laboratory, Department of Space and Climate Physics; University College London, Holmbury St. Mary; Dorking, Surrey UK
- Centre for Planetary Sciences; University College London; London UK
- Space and Atmospheric Physics Group, Blackett Laboratory; Imperial College London; London UK
| | - C. T. Russell
- Institute of Geophysics and Planetary Physics; University of California; Los Angeles California USA
| | - K. K. Khurana
- Institute of Geophysics and Planetary Physics; University of California; Los Angeles California USA
| | - N. Achilleos
- Centre for Planetary Sciences; University College London; London UK
- Space and Atmospheric Physics Group, Blackett Laboratory; Imperial College London; London UK
- Atmospheric Physics Laboratory; University College London; London UK
| | - S. W. H. Cowley
- Department of Physics and Astronomy; University of Leicester; Leicester UK
| | - M. K. Dougherty
- Space and Atmospheric Physics Group, Blackett Laboratory; Imperial College London; London UK
| | | | - E. J. Bunce
- Department of Physics and Astronomy; University of Leicester; Leicester UK
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45
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McAndrews HJ, Owen CJ, Thomsen MF, Lavraud B, Coates AJ, Dougherty MK, Young DT. Evidence for reconnection at Saturn's magnetopause. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012581] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- H. J. McAndrews
- Los Alamos National Laboratory; Los Alamos New Mexico USA
- Mullard Space Science Laboratory; University College London; Surrey UK
| | - C. J. Owen
- Mullard Space Science Laboratory; University College London; Surrey UK
| | - M. F. Thomsen
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - B. Lavraud
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Surrey UK
| | - M. K. Dougherty
- Space and Atmospheric Physics Group; Blackett Laboratory, Imperial College; London UK
| | - D. T. Young
- Division of Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
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46
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Hill TW, Thomsen MF, Henderson MG, Tokar RL, Coates AJ, McAndrews HJ, Lewis GR, Mitchell DG, Jackman CM, Russell CT, Dougherty MK, Crary FJ, Young DT. Plasmoids in Saturn's magnetotail. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012626] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T. W. Hill
- Physics and Astronomy Department; Rice University; Houston Texas USA
| | - M. F. Thomsen
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | | | - R. L. Tokar
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - A. J. Coates
- Mullard Space Science Laboratory; University College London; Surrey UK
| | | | - G. R. Lewis
- Mullard Space Science Laboratory; University College London; Surrey UK
| | - D. G. Mitchell
- Johns Hopkins University; Applied Physics Laboratory; Laurel Maryland USA
| | | | - C. T. Russell
- Institute of Geophysics; University of California; Los Angeles California USA
| | | | - F. J. Crary
- Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
| | - D. T. Young
- Space Science and Engineering; Southwest Research Institute; San Antonio Texas USA
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47
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Rymer AM, Mauk BH, Hill TW, Paranicas C, Mitchell DG, Coates AJ, Young DT. Electron circulation in Saturn's magnetosphere. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012589] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. M. Rymer
- Johns Hopkins University, Applied Physics Laboratory; USA
| | - B. H. Mauk
- Johns Hopkins University, Applied Physics Laboratory; USA
| | - T. W. Hill
- Department of Physics and Astronomy; Rice University; USA
| | - C. Paranicas
- Johns Hopkins University, Applied Physics Laboratory; USA
| | - D. G. Mitchell
- Johns Hopkins University, Applied Physics Laboratory; USA
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48
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Snowden D, Winglee R, Bertucci C, Dougherty M. Three-dimensional multifluid simulation of the plasma interaction at Titan. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007ja012393] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. Snowden
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | - R. Winglee
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | - C. Bertucci
- Space and Atmospheric Physics Group; Imperial College London UK
| | - M. Dougherty
- Space and Atmospheric Physics Group; Imperial College London UK
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49
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Sillanpää I, Kallio E, Jarvinen R, Janhunen P. Oxygen ions at Titan's exobase in a Voyager 1-type interaction from a hybrid simulation. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007ja012348] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- I. Sillanpää
- Finnish Meteorological Institute; Helsinki Finland
| | - E. Kallio
- Finnish Meteorological Institute; Helsinki Finland
| | - R. Jarvinen
- Finnish Meteorological Institute; Helsinki Finland
| | - P. Janhunen
- Finnish Meteorological Institute; Helsinki Finland
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50
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Bertucci C, Achilleos N, Mazelle C, Hospodarsky GB, Thomsen M, Dougherty MK, Kurth W. Low-frequency waves in the foreshock of Saturn: First results from Cassini. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja012098] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C. Bertucci
- Space and Atmospheric Physics Group; Imperial College London; London UK
| | - N. Achilleos
- Space and Atmospheric Physics Group; Imperial College London; London UK
| | - C. Mazelle
- Centre d'Etude Spatiale des Rayonnements, CNRS; Université Paul Sabatier; Toulouse France
| | - G. B. Hospodarsky
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
| | - M. Thomsen
- Los Alamos National Laboratory; Los Alamos New Mexico USA
| | - M. K. Dougherty
- Space and Atmospheric Physics Group; Imperial College London; London UK
| | - W. Kurth
- Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
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