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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…

太阳与恒星天体物理 · 物理学 2022-02-16 Zhe Cui , Xiang-Dong Li

With the increasing number of observed magnetic white dwarfs (WDs), the role of magnetic field of the WD in both single and binary evolutions should draw more attentions. In this study, we investigate the WD/main-sequence star binary…

高能天体物理现象 · 物理学 2019-06-07 Iminhaji Ablimit , Keiichi Maeda

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…

太阳与恒星天体物理 · 物理学 2014-10-21 Bo Wang , Stephen Justham , Zhengwei Liu , Jujia Zhang , Dongdong Liu , Zhanwen Han

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…

太阳与恒星天体物理 · 物理学 2012-05-29 Bo Wang , Xiang-Dong Li , Zhan-Wen 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…

I review various phenomena associated with mass-accreting white dwarfs (WDs) in relation to progenitors of type Ia supernovae (SNe Ia). The WD mass can be estimated from light curve analysis in multiwavelength bands based on the optically…

太阳与恒星天体物理 · 物理学 2011-10-04 Mariko Kato

It is thought that type Ia supernovae (SNe Ia) are explosions of carbon-oxygen white dwarfs (CO WDs). Two main evolutionary channels are proposed for the WD to reach the critical density required for a thermonuclear explosion: the single…

太阳与恒星天体物理 · 物理学 2015-06-18 J. S. W. Claeys , O. R. Pols , R. G. Izzard , J. Vink , F. W. M. Verbunt

Accreting, nuclear-burning white dwarfs have been deemed to be candidate progenitors of type Ia supernovae, and to account for supersoft X-ray sources, novae, etc. depending on their accretion rates. We have carried out a binary population…

太阳与恒星天体物理 · 物理学 2015-06-19 Hai-Liang Chen , T. E. Woods , L. R. Yungelson , M. Gilfanov , Zhanwen Han

Recent observations suggest that some type Ia supernovae (SNe Ia) originate from the merging of two carbon-oxygen white dwarfs (CO WDs). Meanwhile, recent hydrodynamical simulations have indicated that the accretion-induced collapse may be…

太阳与恒星天体物理 · 物理学 2018-03-08 Dongdong Liu , Bo Wang , Philipp Podsiadlowski , Zhanwen Han

Recent investigations of the WD + MS channel of Type Ia supernovae (SNe Ia) imply that this channel may be the main contribution to the old population (>1Gyr) of SNe Ia. In the WD + MS channel, the WD could accrete material from a…

太阳与恒星天体物理 · 物理学 2012-05-29 Bo Wang , Zhanwen Han

As a promising channel to Type Ia supernovae (SNe Ia), we have proposed a symbiotic binary system consisting of a white dwarf (WD) and a low mass red-giant (RG), where strong winds from the accreting WD play a key role to increase the WD…

天体物理学 · 物理学 2009-10-31 Izumi Hachisu , Mariko Kato , Ken'ichi Nomoto

Various white-dwarf (WD) binary scenarios have been proposed trying to understand the nature and the diversity of Type Ia supernovae (SNe Ia). In this work, we study the evolution of carbon-oxygen WD -- red giant (RG) binaries (including…

高能天体物理现象 · 物理学 2023-01-06 Iminhaji Ablimit , Philipp Podsiadlowski , Rosanne Di Stefano , Saul A. Rappaport , James Wicker

The super-Eddington wind scenario has been proposed as an alternative way for producing type Ia supernovae (SNe Ia). The super-Eddington wind can naturally prevent the carbon--oxygen white dwarfs (CO WDs) with high mass-accretion rates from…

太阳与恒星天体物理 · 物理学 2015-04-15 Bo Wang , Xin Ma , Dongdong Liu , Zhengwei Liu , Chengyuan Wu , Jujia Zhang , Zhanwen Han

In the single degenerate (SD) scenario for type Ia supernovae (SNe Ia), a mass-accreting white dwarf is expected to experience a supersoft X-ray source (SSS) phase. However, some recent observations showed that the expected number of the…

太阳与恒星天体物理 · 物理学 2015-05-28 Xiangcun Meng , Wuming Yang

Recent observational evidence has demonstrated that white dwarf (WD) mergers are a highly efficient mechanism for mass accretion onto WDs in the galaxy. In this paper, we show that WD mergers naturally produce highly-magnetized,…

The double-degenerate (DD) model, involving the merging of massive double carbon-oxygen white dwarfs (CO WDs) driven by gravitational wave radiation, is one of the classical pathways for the formation of type Ia supernovae (SNe Ia).…

太阳与恒星天体物理 · 物理学 2018-03-07 Dongdong Liu , Bo Wang , Zhanwen Han

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…

天体物理学 · 物理学 2007-05-23 Izumi Hachisu

Type Ia supernovae (SNe Ia) play an important role in the study of cosmic evolution, especially in cosmology. There are several progenitor models for SNe Ia proposed in the past years. In this paper, by considering the effect of accretion…

太阳与恒星天体物理 · 物理学 2010-03-25 Bo Wang , Zhanwen Han

The nature of the progenitors of type Ia supernovae (SNe Ia) remains a mystery. Binary systems consisting of a white dwarf (WD) and a main-sequence (MS) donor are potential progenitors of SNe Ia, in which a thermonuclear explosion of the WD…

太阳与恒星天体物理 · 物理学 2020-11-17 Zheng-Wei Liu , Richard J. Stancliffe

The single-degenerate channel for the progenitors of type Ia supernovae (SNe Ia) are currently accepted, in which a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from its companion, increases its mass to the…

天体物理学 · 物理学 2009-11-13 X. Meng , X. Chen , Z. Han
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