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Mergers of two carbon-oxygen (CO) white dwarfs (WDs) have been considered as progenitors of Type Ia supernovae (SNe Ia). Based on smoothed particle hydrodynamics (SPH) simulations, previous studies claimed that mergers of CO WDs lead to an…

High Energy Astrophysical Phenomena · Physics 2015-07-15 Yushi Sato , Naohito Nakasato , Ataru Tanikawa , Ken'ichi Nomoto , Keiichi Maeda , Izumi Hachisu

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…

Solar and Stellar Astrophysics · Physics 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…

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

Type Ia supernovae (SNe) are thought to originate from the thermonuclear explosions of carbon-oxygen (CO) white dwarfs (WDs). The proposed progenitors of standard type Ia SNe have been studied for decades and can be, generally, divided into…

High Energy Astrophysical Phenomena · Physics 2019-10-18 Hagai B. Perets , Yossef Zenati , Silvia Toonen , Alexey Bobrick

Binary stellar evolution has been studied as important pathway to initiate various transient events like supernovae (SNe). Although the common envelope (CE) in a binary, outcomes of the CE and conditions for the SN explosion during the CE…

Solar and Stellar Astrophysics · Physics 2021-07-16 Iminhaji Ablimit

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…

Solar and Stellar Astrophysics · Physics 2020-07-14 Bo Wang

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

One of the most important questions regarding the progenitor systems of Type Ia supernovae (SNe Ia) is whether mergers of two white dwarfs can lead to explosions that reproduce observations of normal events. Here we present a fully…

High Energy Astrophysical Phenomena · Physics 2015-06-03 R. Pakmor , M. Kromer , S. Taubenberger , S. A. Sim , F. K. Roepke , W. Hillebrandt

Relatively uniform light curves and spectral evolution of Type Ia supernovae (SNe Ia) have led to the use of SNe Ia as a ``standard candle'' to determine cosmological parameters. Whether a statistically significant value of the cosmological…

Relatively uniform light curves and spectral evolution of Type Ia supernovae (SNe Ia) have led to the use of SNe Ia as a ``standard candle'' to determine cosmological parameters, such as the Hubble constant, the density parameter, and the…

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…

Solar and Stellar Astrophysics · Physics 2010-03-25 Bo Wang , Zhanwen 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…

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

The progenitors of Type Ia Supernovae (SNe Ia) are still unknown, despite significant progress during the last years in theory and observations. Violent mergers of two carbon--oxygen (CO) white dwarfs (WDs) are one candidate suggested to be…

High Energy Astrophysical Phenomena · Physics 2015-06-15 R. Pakmor , M. Kromer , S. Taubenberger , V. Springel

The progenitor problem of Type Ia supernovae (SNe Ia) is still unsolved. Most of these events are thought to be explosions of carbon-oxygen (CO) white dwarfs (WDs), but for many of the explosion scenarios, particularly those involving the…

Context: Although type Ia supernovae (SNe Ia) play a key role in astrophysics, the companions of the exploding carbon-oxygen white dwarfs (CO WDs) are still not completely identified. It has been suggested recently that a He-rich WD (a He…

Solar and Stellar Astrophysics · Physics 2017-10-25 Dongdong Liu , Bo Wang , Chengyuan Wu , Zhanwen Han

A key question for supernova cosmology is whether the peak luminosities of Type Ia supernovae (SNe Ia) are sufficiently free from the effects of cosmic and galactic evolution. To answer this question, we review the currently popular…

Astrophysics · Physics 2009-11-10 K. Nomoto , T. Uenishi , C. Kobayashi , H. Umeda , T. Ohkubo , I. Hachisu , M. Kato

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 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…

Solar and Stellar Astrophysics · Physics 2025-04-03 Boyang Guo , Xiangcun Meng , Zhijia Tian , Jingxiao Luo , Zhengwei Liu

We analyze the influence of the evolution of light absorption by gray dust in the host galaxies of type Ia supernovae (SNe Ia) and the evolution of the mean combined mass of close-binary carbon-oxygen white dwarfs merging due to…

Solar and Stellar Astrophysics · Physics 2015-05-28 A. I. Bogomazov , A. V. Tutukov

Hierarchical triple systems are common among field stars yet their long-term evolution is poorly understood theoretically. In such systems Kozai cycles can be induced in the inner binary system during which the inner orbit eccentricity and…

Solar and Stellar Astrophysics · Physics 2015-06-12 Adrian S. Hamers , Onno R. Pols , Joke S. W. Claeys , Gijs Nelemans
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