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The potential importance of the angular momentum which is gained by accreting white dwarfs (WDs) has been increasingly recognized in the context of type Ia supernova (SN Ia) single-degenerate model. The expectation that the spin of the WD…

Solar and Stellar Astrophysics · Physics 2014-10-21 Bo Wang , Stephen Justham , Zhengwei Liu , Jujia Zhang , Dongdong Liu , Zhanwen Han

Single-degenerate (SD) binary systems composed of a white dwarf and a non-degenerate helium (He)-star companion have been proposed as the potential progenitors of Type Ia supernovae (SNe Ia). The He-star companions are expected to survive…

Solar and Stellar Astrophysics · Physics 2022-04-11 Zheng-Wei Liu , Friedrich K. Roepke , Yaotian Zeng

The nature of the progenitors of Type Ia supernovae (SNe Ia) is still unclear. In this paper, by considering the effect of the instability of accretion disk on the evolution of white dwarf (WD) binaries, we performed binary evolution…

Solar and Stellar Astrophysics · Physics 2012-05-29 Bo Wang , Xiang-Dong Li , Zhan-Wen Han

Models for Type Ia Supernovae (SNe Ia) are reviewed. It is shown that there are strong reasons to believe that most SNe Ia represent thermonuclear disruptions of C-O white dwarfs, when these white dwarfs reach the Chandrasekhar limit and…

Astrophysics · Physics 2007-05-23 Mario Livio

We review all the models proposed for the progenitor systems of Type Ia supernovae and discuss the strengths and weaknesses of each scenario when confronted with observations. We show that all scenarios encounter at least a few serious…

Solar and Stellar Astrophysics · Physics 2018-05-09 Mario Livio , Paolo Mazzali

This Symposium was focused on the hunt for the progenitors of Supernovae of Type Ia. Is there a main channel for the production of SNeIa? If so, are these elusive progenitors Single Degenerate or Double Degenerate systems? Although most…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Lilia Ferrario

The observed sub-class of "superluminous" Type Ia supernovae lacks a convincing theoretical explanation. If the emission of such objects were powered exclusively by radioactive decay of 56Ni formed in the explosion, a progenitor mass close…

High Energy Astrophysical Phenomena · Physics 2018-10-24 M. Fink , M. Kromer , W. Hillebrandt , F. K. Roepke , R. Pakmor , I. R. Seitenzahl , S. A. Sim

The white dwarf (WD) + helium (He) star binary channel plays an important role in the single degenerate scenario for the progenitors of type Ia supernovae (SNe Ia). Previous studies on the WD + main sequence star evolution have shown that…

Solar and Stellar Astrophysics · Physics 2022-02-16 Zhe Cui , Xiang-Dong Li

Binary systems composed of two carbon-oxygen white dwarfs (WDs) are a leading progenitor candidate for Type Ia supernovae. One widely discussed scenario is the dynamically driven double-degenerate double-detonation (D$^6$) of a…

High Energy Astrophysical Phenomena · Physics 2026-05-29 J. M. Pollin , R. Pakmor , L. J. Shingles , F. P. Callan , S. A. Sim , L. A. Kwok , C. E. Collins , F. K. Roepke , A. L. McGarrity

Context. The companions of the exploding carbon-oxygen white dwarfs (CO WDs) for producing type Ia supernovae (SNe Ia) are still not conclusively confirmed. A red-giant (RG) star has been suggested to be the mass donor of the exploding WD,…

Solar and Stellar Astrophysics · Physics 2019-01-30 Dongdong Liu , Bo Wang , Hongwei Ge , Xuefei Chen , Zhanwen Han

Nova explosions occur on the white dwarf (WD) component of a Cataclysmic Variable stellar system which is accreting matter lost by a companion. A Type Ia supernova explosion is thought to result when a WD, in a similar binary configuration,…

Astrophysics · Physics 2009-11-10 S. Starrfield , F. X. Timmes , W. R. Hix , E. M. Sion , W. M. Sparks , S. J. Dwyer

Type Ia supernovae (SNe Ia) are common luminous astrophysical transients. SNe Ia serve as distance indicators for measuring the expansion rate of the universe and play important roles in galactic nucleosynthesis. However, ambiguities…

High Energy Astrophysical Phenomena · Physics 2026-03-02 Vrutant Mehta , Vishal Tiwari , Ruediger Pakmor , Divyanshu Singh , Robert Fisher

In this short review I suggest that recent developments support the conjecture that Type Ia supernovae (SNe Ia) are the complete disruptions of Chandrasekhar-mass carbon-oxygen white dwarfs in single-degenerate binary systems. The causes of…

Astrophysics · Physics 2009-10-31 David Branch

We have been proposing two evolutionary paths to Type Ia supernovae (SNe Ia), which are called the supersoft X-ray source (SSS) channel and the symbiotic channel, depending on the orbital separation just prior to an SN Ia explosion. The…

Astrophysics · Physics 2007-05-23 Izumi Hachisu

Recent studies have suggested that type Iax supernovae (SNe Iax) are likely to result from a weak deflagration explosion of a Chandrasekhar-mass white dwarf in a binary system with a helium (He)-star companion. Assuming that most SNe Iax…

Solar and Stellar Astrophysics · Physics 2022-06-22 Yaotian Zeng , Zheng-Wei Liu , Xiangcun Meng , Zhanwen Han

Type Iax supernovae (SNe Iax) are proposed to arise from deflagrations of Chandrasekhar mass white dwarfs (WDs). Previous deflagration simulations have achieved good agreement with the light curves and spectra of intermediate-luminosity and…

High Energy Astrophysical Phenomena · Physics 2024-04-22 F. P. Callan , S. A. Sim , C. E. Collins , L. J. Shingles , F. Lach , F. K. Roepke , R. Pakmor , M. Kromer , S. Srivastav

Supernova 2002ic was an atypical Type Ia supernova (SN Ia) with evidence for substantial amounts of hydrogen associated with the system. Contrary to previous claims, we show that its unusual properties can be understood within the framework…

Astrophysics · Physics 2009-11-11 Zhanwen Han , Philipp Podsiadlowski

Helium star - carbon-oxygen white dwarf (CO WD) binaries are potential single-degenerate progenitor systems of thermonuclear supernovae. Revisiting a set of binary evolution calculations using the stellar evolution code $\texttt{MESA}$, we…

Solar and Stellar Astrophysics · Physics 2021-12-22 Tin Long Sunny Wong , Josiah Schwab , Ylva Götberg

The WD+MS channel of the single-degenerate scenario is currently favourable for progenitors of type Ia supernovae (SNe Ia). Incorporating the results of detailed binary evolution calculations for this channel into the latest version of a…

Astrophysics · Physics 2009-11-13 Zhanwen Han

Type Ia supernovae (SNe Ia) play a crucial role as standardizable cosmological candles, though the nature of their progenitors is a subject of active investigation. Recent observational and theoretical work has pointed to merging white…

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