X-Ray Studies of Supernova Remnants: A Different View of Supernova Explosions

TL;DR

Chandra's high-resolution X-ray observations have significantly advanced our understanding of supernova remnants, revealing detailed structures that inform supernova explosion physics and progenitor star evolution, complementing optical studies.

Contribution

This paper reviews a decade of Chandra X-ray observations of supernova remnants, highlighting new insights into explosion mechanisms and progenitor characteristics.

Findings

Detailed chemical and physical structures of supernova debris revealed

Constraints on supernova explosion models established

Insights into circumstellar medium shaping by progenitors

Abstract

The unprecedented spatial and spectral resolutions of Chandra have revolutionized our view of the X-ray emission from supernova remnants. The excellent data sets accumulated on young, ejecta dominated objects like Cas A or Tycho present a unique opportunity to study at the same time the chemical and physical structure of the explosion debris and the characteristics of the circumstellar medium sculpted by the progenitor before the explosion. Supernova remnants can thus put strong constraints on fundamental aspects of both supernova explosion physics and stellar evolution scenarios for supernova progenitors. This view of the supernova phenomenon is completely independent of, and complementary to, the study of distant extragalactic supernovae at optical wavelengths. The calibration of these two techniques has recently become possible thanks to the detection and spectroscopic follow-up of supernova light echoes. In this paper, I will review the most relevant results on supernova remnants obtained during the first decade of Chandra, and the impact that these results have had on open issues in supernova research.