The full evolution of supernova remnants in low and high density ambient media

Abstract

Supernova explosions and their remnants (SNRs) drive important feedback mechanisms that impact considerably the galaxies that host them. Then, the knowledge of the SNRs evolution is of paramount importance in the understanding of the structure of the interstellar medium (ISM) and the formation and evolution of galaxies. Here we study the evolution of SNRs in homogeneous ambient media from the initial, ejecta-dominated phase, to the final, momentum-dominated stage. The numerical model is based on the Thin-Shell approximation and takes into account the configuration of the ejected gas and radiative cooling. It accurately reproduces well known analytic and numerical results and allows one to study the SNR evolution in ambient media with a wide range of densities $n_0$. It is shown that in the high density cases, strong radiative cooling alters noticeably the shock dynamics and inhibits the Sedov-Taylor stage, thus limiting significantly the feedback that SNRs provide to such environments. For $n_0>5\times 10^5$ cm${}^{-3}$, the reverse shock does not reach the center of the explosion due to the rapid fall of the thermal pressure in the shocked gas caused by strong radiative cooling.

14 pages, 12 figures, to be published in MNRAS

References in corpus (7)

• The effect of photo-ionization on the cooling rates of enriched, astrophysical plasmas
• Momentum Injection by Supernovae in the Interstellar Medium
• Dust Formation and Survival in Supernova Ejecta
• The dust budget crisis in high-redshift submillimetre galaxies
• Dust production 680-850 million years after the Big Bang
• Globular Cluster Formation at High Density: A model for Elemental Enrichment with Fast Recycling of Massive-Star Debris
• Shock evolution in non-radiative supernova remnants

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