Typing Supernova Remnants Using X-ray Line Emission Morphologies

Details Typing Supernova Remnants Using X-ray Line Emission Morphologies Typing Supernova Remnants Using X-ray Line Emission Morphologies

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.2406l&link_type=abstract

American Astronomical Society, HEAD meeting #11, #24.06; Bulletin of the American Astronomical Society, Vol. 41, p.696

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a new observational method to type the explosions of young supernova remnants (SNRs). By measuring the morphology of the Chandra X-ray line emission in 17 Galactic and Large Magellanic Cloud SNRs with a multipole expansion analysis (using power ratios), we find that the core-collapse SNRs are statistically more asymmetric than the Type Ia SNRs. We show that the two classes of supernovae can be separated naturally using this technique because X-ray line morphologies reflect the distinct explosion mechanisms and structure of the circumstellar material. These findings are consistent with recent spectropolarimetry results showing that core-collapse supernovae explosions are intrinsically more asymmetric.

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