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astro-ph.HE2024
Nonlinear perturbations and weak shock waves in isentropic atmospheres
Tamar Faran, Christopher D. Matzner, Eliot Quataert
Acoustic perturbations to stellar envelopes can lead to the formation of weak shock waves via nonlinear wave-steepening. Close to the stellar surface, the weak shock wave increases…
astro-ph.HE2024
Self-similarity of the third type in ultra relativistic blastwaves
Tamar Faran, Andrei Gruzinov, Re'em Sari
A new type of self-similarity is found in the problem of a plane-parallel, ultra-relativistic blast wave, propagating in a powerlaw density profile of the form . S…