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The molecular emission from old supernova remnants

Published online by Cambridge University Press:  29 January 2014

A. Gusdorf ,
R. Güsten ,
S. Anderl ,
T. Hezareh  and
H. Wiesemeyer
A. Gusdorf
Affiliation:
LERMA, UMR 8112 du CNRS, Observatoire de Paris, École Normale Supérieure, 24 rue Lhomond, F75231 Paris Cedex 05, France, email: antoine.gusdorf@lra.ens.fr
R. Güsten
Affiliation:
Max Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
S. Anderl
Affiliation:
Argelander Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
T. Hezareh
Affiliation:
Max Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
H. Wiesemeyer
Affiliation:
Max Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
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Abstract

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Supernovae constitute a critical source of energy input to the interstellar medium (ISM). In this short review, we focus on their latest phase of evolution, the supernova remnants (SNRs). We present observations of three old SNRs that have reached the phase where they interact with the ambient interstellar medium: W28, IC443, and 3C391. We show that such objects make up clean laboratories to constrain the physical and chemical processes at work in molecular shock environments. Our studies subsequently allow us to quantify the impact of SNRs on their environment in terms of mass, momentum, and energy dissipation. In turn, their contribution to the energy balance of galaxies can be assessed. Their potential to trigger a further generation of star formation can also be investigated. Finally, our studies provide strong support for the interpretation of γ-ray emission in SNRs, a crucial step to answer questions related to cosmic rays population and acceleration.

Keywords

ISM: supernova remnants – Shock waves – Submillimeter: ISM – ISM: individual objects: W28, IC443 & 3C391 – Stars: formation – cosmic rays
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S296: Supernova Environmental Impacts , January 2013 , pp. 178 - 182
Copyright
Copyright © International Astronomical Union 2014 

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