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arXiv · 0910.3208

Typing Supernova Remnants Using X-ray Line Emission Morphologies

Laura A. Lopez·Enrico Ramirez-Ruiz·Carles Badenes·Daniela Huppenkothen·Tesla E. Jeltema·David A. Pooley
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Abstract

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 seventeen 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 SNe are intrinsically more asymmetric.

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Laura A. Lopez, Enrico Ramirez-Ruiz, Carles Badenes, Daniela Huppenkothen, Tesla E. Jeltema, David A. Pooley. 2009-10-19. Typing Supernova Remnants Using X-ray Line Emission Morphologies. https://doi.org/10.1088/0004-637x/706/1/l106

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