2011/01/18 by Lorenzo Zaninetti · 11 citations
Medicine · Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Cosmology #Gamma-ray bursts and supernovae #Medicine #Physics #Pulsars and Gravitational Waves Research #astro-ph.GA
paper · pdf · doi:10.1007/s10509-011-0609-x
published in Astrophysics and Space Science 333(1), 99-113 (Springer Science+Business Media) · 20 pages 19 figures, Accepted for pubblication in Astrophysics and Space Science 2011
arxiv created 2011/01/18 · openalex publication_date 2011/01/18 · arxiv updated 2015/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A classical and a relativistic law of motion for a supernova remnant (SNR) are deduced assuming an inverse power law behavior for the density of the interstellar medium and applying the thin layer approximation. A third equation of motion is found in the framework of relativistic hydrodynamics with pressure, applying momentum conservation. These new formulas are calibrated against a decade of observations of \snr. The existing knowledge of the diffusive processes of ultrarelativistic electrons is reviewed in order to explain the behavior of the `U' shaped profile of intensity versus distance from the center of SN 1993J.