Early evolution of spherical ejecta expanding into the circumstellar matter at ultra-relativistic speeds
classification
🌌 astro-ph.HE
physics.flu-dyn
keywords
circumstellarejectamatterearlyevolutionexpandingpropagatesspherical
read the original abstract
We present a new self-similar solution describing early evolution of an ultra-relativistic flow resulting from a collision of homologously expanding spherical ejecta with the circumstellar matter, in which a shock wave propagates in the circumstellar matter while a weak discontinuity propagates in the ejecta at the sound speed
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