Ultra-Relativistic Shockwaves in Arbitrary Continuous Media I

Details Ultra-Relativistic Shockwaves in Arbitrary Continuous Media I Ultra-Relativistic Shockwaves in Arbitrary Continuous Media I

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..968...36v&link_type=abstract

ASTROPHYSICS OF COMPACT OBJECTS: International Conference on Astrophysics of Compact Objects. AIP Conference Proceedings, Volum

Astronomy and Astrophysics

Astrophysics

Planetary Bow Shocks, Interplanetary Shocks, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

Ultra-relativistic shockwaves occur in the study of several classes of astrophysical objects, including pulsar wind nebulae and active galactic nuclei, and are widespread in research on gamma-ray bursts. This work investigates generalizations of the familiar Blandford-McKee solutions to the fluid equations for the case of an ultra-relativistic shockwave propagating in a continuous, varying external medium. We obtain a semi-analytic result in which the post-shock material behaves locally as an ``almost self-similar'' solution, evolving adiabatically with the external medium. We discuss the implications of our results for GRB observations.

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