WD + MS systems as the progenitor of SNe Ia

Abstract

We show the initial and final parameter space for SNe Ia in a ($\log P^{\mathrm{i}},M_2^{\mathrm{i}}$) plane and find that the positions of some famous recurrent novae, as well as a supersoft X-ray source (SSS), RX J0513.9-6951, are well explained by our model. The model can also explain the space velocity and mass of Tycho G, which is now suggested to be the companion star of Tycho's supernova. Our study indicates that the SSS, V Sge, might be the potential progenitor of supernovae like SN 2002ic if the delayed dynamical-instability model due to Han & Podsiadlowski (2006) is appropriate. Following the work of Meng, Chen & Han (2009), we found that the SD model (WD + MS) with an optically thick wind can explain the birth rate of supernovae like SN 2006X and reproduce the distribution of the color excess of SNe Ia. The model also predicts that at least 75% of all SNe Ia may show a polarization signal in their spectra.

6 pages, 2 figures, accepted for publication in Astrophysics & Space Science (Proceeding of the 4th Meeting on Hot Subdwarf Stars and Related Objects, edited by Zhanwen Han, Simon Jeffery & Philipp Podsiadlowski)

References in corpus (8)

• The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star
• The Luminous and Carbon-Rich Supernova 2006gz: A Double Degenerate Merger?
• Young and Massive Binary Progenitors of Type Ia Supernovae and Their Circumstellar Matter
• Subaru high-resolution spectroscopy of Star G in the Tycho supernova remnant
• The single-degenerate channel for the progenitor of type Ia supernovae with different metallicities
• A single-degenerate model for the progenitor of the Type Ia supernova 2002ic
• Companion Stars of Type Ia Supernovae
• Evolving to type Ia supernovae with long delay time

Cited by in corpus (1)

• Swift X-Ray Observations of Classical Novae. II. The Super Soft Source sample