The hybrid CONe WD + He star scenario for the progenitors of type Ia supernovae

Abstract

The hybrid CONe white dwarfs (WDs) have been suggested to be possible progenitors of type Ia supernovae (SNe Ia). In this article, we systematically studied the hybrid CONe WD + He star scenario for the progenitors of SNe Ia, in which a hybrid CONe WD increases its mass to the Chandrasekhar mass limit by accreting He-rich material from a non-degenerate He star. According to a series of detailed binary population synthesis simulations, we obtained the SN Ia birthrates and delay times for this scenario. The SN Ia birthrates for this scenario are ~0.033-0.539*10^(-3)yr^(-1), which roughly accounts for 1-18% of all SNe Ia. The estimated delay times are ~28Myr-178Myr, which are the youngest SNe Ia predicted by any progenitor model so far. We suggest that SNe Ia from this scenario may provide an alternative explanation of type Iax SNe. We also presented some properties of the donors at the point when the WDs reach the Chandrasekhar mass. These properties may be a good starting point for investigating the surviving companions of SNe Ia, and for constraining the progenitor scenario studied in this work.

Accepted for publication in ApJ Letters, 4 figures, 1 table

References in corpus (6)

• The 12C + 12C reaction and the impact on nucleosynthesis in massive stars
• The single-degenerate channel for the progenitor of type Ia supernovae with different metallicities
• An ultra-massive fast-spinning white dwarf in a peculiar binary system
• Possible Detection of the Stellar Donor or Remnant for the Type Iax Supernova 2008ha
• Helium Nova on a Very Massive White Dwarf -- A Light Curve Model of V445 Puppis (2000) Revised
• The birth rate of SNe Ia from hybrid CONe white dwarfs

Cited by in corpus (14)

• Deflagrations in hybrid CONe white dwarfs: a route to explain the faint Type Iax supernova 2008ha
• On Carbon Burning in Super Asymptotic Giant Branch Stars
• He-accreting carbon-oxygen white dwarfs and type Ia supernovae
• Partly burnt runaway stellar remnants from peculiar thermonuclear supernovae
• Hybrid C-O-Ne white dwarfs as progenitors of type Ia supernovae: dependence on Urca process and mixing assumptions
• Investigating the diversity of supernovae type Iax: A MUSE and NOT spectroscopic study of their environments
• Accretion-Induced Collapse From Helium Star + White Dwarf Binaries
• Convection Destroys the Core/Mantle Structure in Hybrid C/O/Ne White Dwarfs
• Detecting the signatures of helium in type Iax supernovae
• Evolution of Helium Star - White Dwarf Binaries Leading up to Thermonuclear Supernovae
• The Early Light Curve of a Type Ia Supernova 2021hpr in NGC 3147: Progenitor Constraints with the Companion Interaction Model
• Type Ia Supernova Explosions from Hybrid Carbon-Oxygen-Neon White Dwarf Progenitors That Have Mixed During Cooling
• Timing the X-ray pulsating companion of the hot-subdwarf HD 49798 with NICER
• Hot subdwarfs from the surviving companions of the white dwarf + main-sequence channel of Type Ia supernovae