Are the Models for Type Ia Supernova Progenitors Consistent with the Properties of Supernova Remnants
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In this paper, the authors explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion, and find that optically thick outflows from the white dwarf surface (sometimes known as "accretion winds") with velocities above 200 km s-1 excavate large low density cavities around the progenitors.Abstract:
We explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion. Most models for Type Ia progenitors in the single-degenerate scenario predict substantial outflows during the presupernova evolution. Expanding on previous work, we estimate the imprint of these outflows on the structure of the circumstellar medium at the time of the supernova explosion, and the effect that this modified circumstellar medium has on the evolution of the ensuing supernova remnant. We compare our simulations with the observational properties of known Type Ia supernova remnants in the Galaxy (Kepler, Tycho, SN 1006), the Large Magellanic Cloud (0509-67.5, 0519-69.0, N103B), and M31 (SN 1885). We find that optically thick outflows from the white dwarf surface (sometimes known as "accretion winds") with velocities above 200 km s-1 excavate large low-density cavities around the progenitors. Such large cavities are incompatible with the dynamics of the forward shock and the X-ray emission from the shocked ejecta in all the Type Ia remnants that we have examined.read more
Citations
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Observational Clues to the Progenitors of Type Ia Supernovae
TL;DR: In this article, the authors review the significant recent observational progress in addressing the progenitor problem and consider clues that have emerged from the observed properties of the various proposed proggenitor populations, from studies of SN Ia sites.
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The Evolution of Compact Binary Star Systems
TL;DR: The formation and evolution of compact binary stars consisting of white dwarfs, neutron stars, and black holes are reviewed, including their role as progenitors of cosmologically-important thermonuclear SN Ia and AM CVn-stars, which are thought to be the best verification binary GW sources for future low-frequency GW space interferometers.
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NORMAL TYPE Ia SUPERNOVAE FROM VIOLENT MERGERS OF WHITE DWARF BINARIES
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TL;DR: In this paper, a simulation of a violent merger of two carbon-oxygen white dwarfs with masses of 0.9 M and 1.1 M was presented, where a well-tested combination of codes was used to study the system.
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Supernova remnants: the X-ray perspective
TL;DR: In particular, the advances made in X-ray imaging spectroscopy over the last two decades has greatly increased our knowledge about supernova remnants as mentioned in this paper, and it has made it possible to map the products of fresh nucleosynthesis, and resulted in the identification of regions near shock fronts that emit Xray synchrotron radiation.
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Progenitors of type Ia supernovae
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TL;DR: In this article, the authors review various progenitor models proposed in the past few years and summarize many observational results that can be used to put constraints on the nature of their progenitors.
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