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The First Systematic Multi-wavelength Survey of Extragalactic Supernova Remnants

Published online by Cambridge University Press:  29 January 2014

I. Leonidaki ,
P. Boumis  and
A. Zezas
I. Leonidaki
Affiliation:
Institute of Astronomy, Astrophysics, Space Applications & Remote Sensing, National Observatory of Athens, I. Metaxa & Vas. Pavlou St., Palaia Penteli GR-15236 Athens, Greece email: ileonid@noa.gr, ptb@noa.gr
P. Boumis
Affiliation:
Institute of Astronomy, Astrophysics, Space Applications & Remote Sensing, National Observatory of Athens, I. Metaxa & Vas. Pavlou St., Palaia Penteli GR-15236 Athens, Greece email: ileonid@noa.gr, ptb@noa.gr
A. Zezas
Affiliation:
University of Crete, Physics Department & Institute of Theoretical & Computational Physics, 71003 Heraklion, Crete, Greece Foundation for Research and Technology-Hellas, 71110 Heraklion, Crete, Greece Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA email: azezas@cfa.harvard.edu, azezas@physics.uoc.gr
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Abstract

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We present the largest sample of multi-wavelength Supernova Remnants (SNRs) in six nearby galaxies, based on Chandra archival data and deep optical narrow-band Hα and [Sii] images as well as spectroscopic observations. We have identified 37 X-ray selected thermal SNRs, 30 of which are new identifications and ~ 400 optical SNRs, for 67 of which we spectroscopically verified their shock-excited nature. We discuss the properties of the X-ray/optically detected SNRs in different types of galaxies and hence different environments, in order to address their dependence on their Interstellar Medium (ISM). We also discuss the SNR populations in the context of the star formation rate of their host galaxies. We cross-correlate parameters of the optically detected SNRs with parameters of coincident X-ray emitting SNRs in order to understand their evolution and investigate possible selection effects.

Keywords

supernova remnantsISMstar formationgalaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S296: Supernova Environmental Impacts , January 2013 , pp. 222 - 225
Copyright
Copyright © International Astronomical Union 2014 

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