Is there a hidden hole in Type Ia supernova remnants?

Abstract

In this paper we report on the bulk features of the hole carved by the companion star in the material ejected during a Type Ia supernova explosion. In particular we are interested in the long term evolution of the hole as well as in its fingerprint in the geometry of the supernova remnant after several centuries of evolution, which is a hot topic in current Type Iasupernovae studies. We use an axisymmetric smoothed particle hydrodynamics code to characterize the geometric properties of the supernova remnant resulting from the interaction of this ejected material with the ambient medium. Our aim is to use supernova remnant observations to constrain the single degenerate scenario for Type Ia supernova progenitors. Our simulations show that the hole will remain open during centuries, although its partial or total closure at later times due to hydrodynamic instabilities is not excluded. Close to the edge of the hole, the Rayleigh-Taylor instability grows faster, leading to plumes that approach the edge of the forward shock. We also discuss other geometrical properties of the simulations, like the evolution of the contact discontinuity.

48 pages, 17 figures; Accepted for publication in ApJ

References in corpus (6)

• Spectropolarimetry of Supernovae
• Constraining the Type Ia Supernova Progenitor: The Search for Hydrogen in Nebular Spectra
• Astrophysical Smooth Particle Hydrodynamics
• The impact of type Ia supernovae on main sequence binary companions
• The Persistence of Memory, or How the X-Ray Spectrum of SNR 0509-67.5 Reveals the Brightness of its Parent Type Ia Supernova
• Axisymmetric smoothed particle hydrodynamics with self-gravity

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• Surviving companions of Type Ia supernovae: theory and observations
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• Testing the concept of integral approach to derivatives within the smoothed particle hydrodynamics technique in astrophysical scenarios
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• Evolution of Main-Sequence-like Surviving Companions in Type Ia Supernova Remnants
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• Shadows of our Former Companions: How the Single-Degenerate Binary Type Ia Supernova Scenario Affects Remnants
• Three-Dimensional Simulations of Type Ia Supernova Remnants I: Effects of a Main-Sequence Companion Star
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