Hohenberger M, Symes DR, Lazarus J, Doyle HW, Carley RE, Moore AS, Gumbrell ET, Notley MM, Clarke RJ, Dunne M, Smith RA. Observation of a velocity domain cooling instability in a radiative shock.
Phys Rev Lett 2010;
105:205003. [PMID:
21231241 DOI:
10.1103/physrevlett.105.205003]
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Abstract
We report on experimental investigations into strong, laser-driven, radiative shocks in cluster media. Cylindrical shocks launched with several joules of deposited energy exhibit strong radiative effects including rapid deceleration, radiative preheat, and shell thinning. Using time-resolved propagation data from single-shot streaked Schlieren measurements, we have observed temporal modulations on the shock velocity, which we attribute to the thermal cooling instability, a process which is believed to occur in supernova remnants but until now has not been observed experimentally.
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