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Based on the results of Chen & Li (2009) and Pakmor et al. (2010), we carried out a series of binary population synthesis calculations and considered two treatment of common envelope (CE) evolution, i.e. $\alpha$-formalism and…

Solar and Stellar Astrophysics · Physics 2015-05-20 Xiangcun Meng , Wencong Chen , Wuming Yang , Zhongmu Li

Type Ia supernovae (SNe Ia) play an important role in diverse areas of astrophysics, from the chemical evolution of galaxies to observational cosmology. However, the nature of the progenitors of SNe Ia is still unclear. In this paper,…

Solar and Stellar Astrophysics · Physics 2012-05-29 Bo Wang , Zhengwei Liu , Yunkun Han , Zhenxin Lei , Yangping Luo , Zhanwen Han

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).…

Solar and Stellar Astrophysics · Physics 2018-03-07 Dongdong Liu , Bo Wang , Zhanwen Han

The single-degenerate model is currently a favourable progenitor model for Type Ia supernovae (SNe Ia). Recent investigations on the WD + He star channel of the single-degenerate model imply that this channel is noteworthy for producing SNe…

Solar and Stellar Astrophysics · Physics 2011-02-11 Bo Wang , Xuefei Chen , Xiangcun Meng , 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…

Solar and Stellar Astrophysics · Physics 2015-06-18 J. S. W. Claeys , O. R. Pols , R. G. Izzard , J. Vink , F. W. M. Verbunt

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…

Astrophysics · Physics 2009-11-13 Xiangcun Meng , Xuefei Chen , Zhanwen Han

Despite their prominent role in cosmography, little is yet known about the nature of type-Ia supernovae (SNe Ia), from the identity of their progenitor systems, through the evolution of those systems up to ignition and explosion, and to the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Dan Maoz

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…

Astrophysics · Physics 2009-11-13 X. Meng , X. Chen , Z. Han

The origin of the progenitors of type Ia supernovae (SNe Ia) is still uncertain. The core-degenerate (CD) scenario has been proposed as an alternative way for the production of SNe Ia. In this scenario, SNe Ia are formed at the final stage…

Solar and Stellar Astrophysics · Physics 2017-09-15 Bo Wang , Weihong Zhou , Zhaoyu Zuo , Yinbi Li , Xia Luo , Jujia Zhang , Dongdong Liu , Chengyuan Wu

The core-degenerate (CD) scenario has been suggested to be a possible progenitor model of type Ia supernovae (SNe Ia), in which a carbon-oxygen white dwarf (CO WD) merges with the hot CO core of a massive asymptotic giant branch (AGB) star…

Solar and Stellar Astrophysics · Physics 2015-10-14 Weihong Zhou , Bo Wang , Xiangcun Meng , Dongdong Liu , Gang Zhao

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…

Solar and Stellar Astrophysics · Physics 2010-05-27 Ashley J. Ruiter , Krzysztof Belczynski , Chris L. Fryer

Recent theoretical and observational studies both argue that the merging of double carbon-oxygen white dwarfs (WDs) is responsible for at least some Type Ia supernovae (SNe Ia). Previous (standard) studies of the anticipated SN birthrate…

Solar and Stellar Astrophysics · Physics 2015-06-05 Xuefei Chen , Jeffery C. Simon , Xianfei Zhang , Zhanwen Han

Measuring the delay-time distribution (DTD) of type Ia supernova(SNe Ia) is an important way to constrain the progenitor nature of SNe Ia. Recently, Strolger et al. (2010) obtained a very delayed DTD, which is much different from other…

Solar and Stellar Astrophysics · Physics 2015-05-28 Xiangcun Meng , Zhongmu Li , Wuming Yang

The identity of the progenitor systems of type-Ia supernovae (SNe Ia) is a major unsolved problem in astrophysics. SN Ia rates are providing some striking clues. We review the basics of SN rate measurement, preach about some sins of SN rate…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Dan Maoz , Filippo Mannucci

The delay time distribution (DTD) of type Ia supernovae (SNe Ia) from star formation is an important clue to reveal the still unknown progenitor system of SNe Ia. Here we report on a measurement of the SN Ia DTD in a delay time range of…

Astrophysics · Physics 2015-05-13 Tomonori Totani , Tomoki Morokuma , Takeshi Oda , Mamoru Doi , Naoki Yasuda

Knowledge of the supernova (SN) delay time distribution (DTD) - the SN rate versus time that would follow a hypothetical brief burst of star formation - can shed light on SN progenitors and physics. We compile recent measurements of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Dan Maoz , Keren Sharon , Avishay Gal-Yam

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…

Astrophysics · Physics 2009-11-10 Zhanwen Han , Philipp Podsiadlowski

Type Ia supernovae (SNe Ia) are thought to be the result of thermonuclear explosions in white dwarfs (WDs). Commonly considered formation pathways include two merging WDs (the double degenerate channel), and a single WD accreting material…

Solar and Stellar Astrophysics · Physics 2023-06-14 Abinaya Swaruba Rajamuthukumar , Adrian Hamers , Patrick Neunteufel , Ruediger Pakmor , Selma E. de mink

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)…

High Energy Astrophysical Phenomena · Physics 2019-12-11 Iminhaji Ablimit , Keiichi Maeda

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…

Solar and Stellar Astrophysics · Physics 2015-04-15 Bo Wang , Xin Ma , Dongdong Liu , Zhengwei Liu , Chengyuan Wu , Jujia Zhang , Zhanwen Han
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