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相关论文: On the evolution of rotating accreting white dwarf…

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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

Taking into account the rotation of mass-accreting white dwarfs (WDs) whose masses exceed the Chandrasekhar mass, we extend our new single degenerate model for the progenitors of Type Ia supernovae (SNe Ia), accounting for two types of…

太阳与恒星天体物理 · 物理学 2015-06-05 Izumi Hachisu , Mariko Kato , Ken'ichi Nomoto

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

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

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

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

The evolution of an accreting white dwarf (WD) with strong magnetic field toward a type Ia supernova (SN Ia) may differ from the classical single-degenerate (SD) channel. In this paper, we perform binary population synthesis (BPS)…

高能天体物理现象 · 物理学 2019-12-11 Iminhaji Ablimit , Keiichi Maeda

(${Abridged~version}$) We review how the single degenerate models for Type Ia supernovae (SNe Ia) works. In the binary star system of a white dwarf (WD) and its non-degenerate companion star, the WD accretes either H-rich matter or He and…

高能天体物理现象 · 物理学 2019-06-26 Ken'ichi Nomoto , Shing-Chi Leung

Type Ia supernovae (SNe Ia) are a critical tool for cosmology and galactic enrichment, yet the progenitor systems of normal SNe Ia remain a central puzzle. The long-debated single-degenerate (SD) channel, where a white dwarf (WD) accretes…

太阳与恒星天体物理 · 物理学 2026-02-18 Amir Michaelis , Hagai B. Perets

Recent observations of Type Ia supernovae (SNe Ia) suggest that some of the progenitor white dwarfs (WDs) had masses up to 2.4-2.8 M_sun, highly exceeding the Chandrasekhar mass limit. We present a new single degenerate (SD) model for SN Ia…

太阳与恒星天体物理 · 物理学 2015-05-28 Izumi Hachisu , Mariko Kato , Hideyuki Saio , Ken'ichi Nomoto

Type Ia supernovae (SNe Ia) play a prominent role in understanding the evolution of Universe. They are thought to be thermonuclear explosions of mass-accreting carbon-oxygen white dwarfs (CO WDs) in binaries, although the mass donors of the…

太阳与恒星天体物理 · 物理学 2020-07-14 Bo Wang

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

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

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

We study the occurrence of delayed SNe~Ia in the single degenerate (SD) scenario. We assume that a massive carbon-oxygen (CO) white dwarf (WD) accretes matter coming from a companion star, making it to spin at the critical rate. We assume…

高能天体物理现象 · 物理学 2015-08-19 Omar G. Benvenuto , Jorge A. Panei , Ken'ichi Nomoto , Hikaru Kitamura , Izumi Hachisu

We have carried out a detailed study of the single-degenerate channel for the progenitors of type Ia supernovae (SNe Ia). In the model, a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from an unevolved or a slightly…

天体物理学 · 物理学 2009-11-13 Xiangcun Meng , Xuefei Chen , Zhanwen Han

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

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

The single-degenerate model for the progenitors of type Ia supernovae (SNe Ia) is one of the two most popular models, in which a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from its companion, increases its mass to the…

太阳与恒星天体物理 · 物理学 2015-05-13 Xiangcun Meng , Wuming Yang , Xuemin Geng

We have carried out a detailed study of one of the most popular evolutionary channels for the production of Type Ia supernova (SN Ia) progenitors, the semi-degenerate channel (CO+MS), where a carbon/oxygen (CO) white dwarf (WD) accretes…

天体物理学 · 物理学 2009-11-10 Zhanwen Han , Philipp Podsiadlowski
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