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Energy Conservation in the Thin Layer Approximation: III. The Spherical Relativistic Case for Supernovae
Physics Department, Turin, Italy
- 1 Physics Department, Turin, Italy
International Journal of Astronomy and Astrophysics·Volume 10 (2020)·Pages 285–301·Published 16 October 2020·DOI10.4236/ijaa.2020.104015
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Abstract
The theory of the conservation of energy in the thin layer approximation has been extended to special relativity. Four models for the density of the circumstellar medium are analyzed, which are represented by constant, power law, exponential and Emden ( n = 5) profile for density. The astrophysical results are presented in a numerical way, except for a Taylor expansion of the four trajectories in the surrounding of the origin. The free parameters of the models are particularized for SN1993j, for which the radius versus time is known. Some evaluations on the time dilation are presented.
KeywordsSupernovae: GeneralSupernovae: Individual (SN1993j)ISM: Supernova Remnants
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