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Title: Predicting the amount of hydrogen stripped by the SN explosion for SN 2002cx-like SNe Ia

The most favored progenitor scenarios for Type Ia supernovae (SNe Ia) involve the single-degenerate (SD) scenario and the double-degenerate scenario. The absence of stripped hydrogen (H) in the nebular spectra of SNe Ia challenges the SD progenitor models. Recently, it was shown that pure deflagration explosion models of Chandrasekhar-mass white dwarfs, ignited off-center, reproduce the characteristic observational features of 2002cx-like SNe Ia very well. In this work we predict, for the first time, the amount of stripped H for the off-center, pure deflagration explosions. We find that their low kinetic energies lead to inefficient H mass stripping (≲ 0.01 M {sub ☉}), indicating that the stripped H may be hidden in (observed) late-time spectra of SN 2002cx-like SNe Ia.
Authors:
; ; ;  [1] ;  [2] ; ;  [3] ;  [4]
  1. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011 (China)
  2. Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, D-85741 Garching (Germany)
  3. Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, D-97074 Würzburg (Germany)
  4. Heidelberger Institut für Theoretische Studien, Schloss-Wolfsbrunnenweg 35, D-69118 Heidelberg (Germany)
Publication Date:
OSTI Identifier:
22341960
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 778; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; EXPLOSIONS; HYDROGEN; MASS; NEBULAE; SPECTRA; STRIPPING; SUPERNOVAE; WHITE DWARF STARS