Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..dppbp1107k&link_type=abstract
American Physical Society, 44th Annual Meeting of the Division of Plasma , abstract #BP1.107
Astronomy and Astrophysics
Astrophysics
Scientific paper
For a blast wave in which the shock radius evolves with time as R t^n, the system can be described by a self-similar approximation for the case in which any energy loss is a constant fraction ɛ of the energy flux across the shock front. In previous work, we have developed a simple analytic relation between n and ɛ. This poster describes an improved analytic approach to radiative blast wave evolution for the case in which the upstream material has been preheated to a significant degree. The cases of both spherical and cylindrical geometries are included. This approximation is independent of the exact mechanism of radiative cooling, and is scalable to both the laboratory and astrophysical blast waves.
Keilty Katherine Anne
Liang Edison P.
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