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has been cited by the following article:

• TITLE: Energy Conservation in the Thin Layer Approximation: III. The Spherical Relativistic Case for Supernovae

  AUTHORS: Lorenzo Zaninetti

  KEYWORDS: Supernovae: General, Supernovae: Individual (SN1993j), ISM: Supernova Remnants

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.10 No.4, October 19, 2020

  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.