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Oxygen emission in remnants of thermonuclear supernovae as a probe for their progenitor system
Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). Stockholm University, Faculty of Science, Department of Astronomy. Max-Planck-Institut für Astrophysik, Germany.
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Number of Authors: 6
2015 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 449, no 2, 1441-1448 p.Article in journal (Refereed) Published
Abstract [en]

Recent progress in numerical simulations of thermonuclear supernova explosions brings up a unique opportunity in studying the progenitors of Type Ia supernovae. Coupling state-of-the-art explosion models with detailed hydrodynamical simulations of the supernova remnant evolution and the most up-to-date atomic data for X-ray emission calculations makes it possible to create realistic synthetic X-ray spectra for the supernova remnant phase. Comparing such spectra with high-quality observations of supernova remnants could allow us to constrain the explosion mechanism and the progenitor of the supernova. The present study focuses in particular on the oxygen emission line properties in young supernova remnants, since different explosion scenarios predict a different amount and distribution of this element. Analysis of the soft X-ray spectra from supernova remnants in the Large Magellanic Cloud and confrontation with remnant models for different explosion scenarios suggest that SNR 0509-67.5 could originate from a delayed detonation explosion and SNR 0519-69.0 from an oxygen-rich merger.

Place, publisher, year, edition, pages
2015. Vol. 449, no 2, 1441-1448 p.
Keyword [en]
hydrodynamics, ISM: supernova remnants, supernovae: individual: 0509-67.5, supernovae: individual: 0519-69.0
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-119075DOI: 10.1093/mnras/stv348ISI: 000355337500023OAI: oai:DiVA.org:su-119075DiVA: diva2:843480
Available from: 2015-07-29 Created: 2015-07-27 Last updated: 2017-12-04Bibliographically approved

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