Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death


1st Abstract

Title (1st Abstract)

Observational facts of Extragalactic SNRs

First Author

Miroslav Filipovic


Western Sydney University

Additional Authors

Kavanagh P., Haberl F., Sasaki M., Bozzetto L., Urosevic D.,

Presentation options



1. Radiation studies from gamma-rays to radio in Galactic and Extragalactic SNRs

1st Abstract

This is an exciting time for the discovery of supernova remnants (SNRs) in galaxies other than our Milky Way. SNRs reflect a major process in the elemental enrichment of the interstellar medium (ISM). The study of this interaction in different domains including radio, optical, IR and X-ray, allow a better understanding of these remnants and their environments. Nearby external galaxies offer an ideal laboratory, since they are near enough to be resolved, yet located at relatively known distances.

I will review our most recent searches for SNRs in the Magellanic Clouds, M33, M31, NGC 300, NGC 45, NGC 6744 and NGC 7793. New high resolution (~1”) and sensitive (< 0.3 mJy beam-1) radio (ASKAP, ATCA & MWA), X-ray (XMM & CHANDRA), IR (Herschel and Spitzer) and optical (WIFES) images of these galaxies have preliminarily revealed thousands of sources from which we found a total of over 300 extended sources that are SNRs or candidates. We investigate their intrinsic and overall properties and found some remarkable and unexpected differences.

I will also present our breakthrough studies of first extragalactic SNRs expansion as well as our first detection of circular polarisation in extragalactic SNR. You will have a chance to see the most complete Sigma-D study of all KNOWN SNRs and how they interact with nearby molecular clouds. I will present the case for DD vs SD in Type Ia for some 15 LMC SNRs based on our X-ray and radio observations. Finally, I will present our strategies for the next 10 years on how to observe SNRs with the next generation of instruments — from ASKAP/MWA2 to CTA via eRosita and whoever else…