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Using a hybrid binary population synthesis approach, we modelled the formation and evolution of populations of accreting WDs for differing star formation histories. We found that the delay time distribution of SNe Ia in the single…

太阳与恒星天体物理 · 物理学 2018-10-19 Hai-Liang Chen , Tyrone E. Woods , Lev Yungelson , Marat Gilfanov , 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

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 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

Despite the significance of type Ia supernovae (SNeIa) in many fields in astrophysics, SNeIa lack a theoretical explanation. We investigate the potential contribution to the SNeIa rate from the most common progenitor channels using the…

高能天体物理现象 · 物理学 2013-02-06 S. Toonen , G. Nelemans , M. Bours , S. Portegies Zwart

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

Accreting white dwarfs (WDs) with non-degenerate companions are expected to emit in soft X-rays and the UV, if accreted H-rich material burns stably. They are an important component of the unresolved emission of elliptical galaxies, and…

太阳与恒星天体物理 · 物理学 2015-09-16 Hai-Liang Chen , T. E. Woods , L. R. Yungelson , M. Gilfanov , Zhanwen Han

The study of Type Ia supernovae (SNIa) has lead to greatly improved insights into many fields in astrophysics, however a theoretical explanation of the origin of these events is still lacking. We investigate the potential contribution to…

高能天体物理现象 · 物理学 2015-06-11 Silvia Toonen , Gijs Nelemans , Simon Portegies Zwart

Using the population synthesis binary evolution code StarTrack, we present theoretical rates and delay times of Type Ia supernovae arising from various formation channels. These channels include binaries in which the exploding white dwarf…

太阳与恒星天体物理 · 物理学 2015-05-20 A. J. Ruiter , K. Belczynski , S. A. Sim , W. Hillebrandt , M. Fink , M. Kromer

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

Binary population synthesis (BPS) study provides a comprehensive way to understand evolutions of binaries and their end products. Close white dwarf (WD) binaries have crucial characteristics in examining in uence of yetunresolved physical…

高能天体物理现象 · 物理学 2016-07-22 Iminhaji Ablimit , Keiichi Maeda , Xiang-Dong Li

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

Despite the significance of Type Ia supernovae (SNeIa) in many fields in astrophysics, SNeIa lack a theoretical explanation. The standard scenarios involve thermonuclear explosions of carbon/oxygen white dwarfs approaching the Chandrasekhar…

高能天体物理现象 · 物理学 2013-02-05 S. Toonen , G. Nelemans , M. Bours , S. Portegies Zwart , J. Claeys , N. Mennekens , A. Ruiter

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

We analyze the evolution of binary stars to calculate synthetic rates and delay times of the most promising Type Ia Supernovae progenitors. We present and discuss evolutionary scenarios in which a white dwarf reaches the Chandrasekhar-mass…

太阳与恒星天体物理 · 物理学 2010-05-27 Ashley J. Ruiter , Krzysztof Belczynski , Chris L. Fryer

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

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 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

The nature of progenitors of Type Ia supernovae (SNe Ia) and their explosion mechanism remain unclear. It has been suggested that SNe Ia may be resulted from thermonuclear explosions of hybrid carbon-oxygen-neon white dwarfs(CONe WDs) when…

太阳与恒星天体物理 · 物理学 2025-04-03 Boyang Guo , Xiangcun Meng , Zhijia Tian , Jingxiao Luo , Zhengwei Liu

We present a brief summary of the Single Degenerate Scenario for the progenitors of Type Ia Supernovae in which it is assumed that a low mass carbon-oxygen white dwarf is growing in mass as a result of accretion from a secondary star in a…

太阳与恒星天体物理 · 物理学 2012-10-24 S. Starrfield , C. Iliadis , F. X. Timmes , W. R. Hix , W. D. Arnett , C. Meakin , W. M. Sparks
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