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The progenitor systems accounting for explosions of type Ia supernovae (SNe Ia) is still under debate. Symbiotic channel is one of the possible progenitor scenarios, in which the WDs in these systems increase in mass through wind accretion…

太阳与恒星天体物理 · 物理学 2021-03-17 Chengyuan Wu , Dongdong Liu , Xiaofeng Wang , Bo Wang

There is still considerable debate over the progenitors of type Ia supernovae (SNe Ia). Likewise, it is not agreed how single white dwarfs with masses less than ~0.5 Msun can be formed in the field, even though they are known to exist. We…

天体物理学 · 物理学 2009-11-13 Stephen Justham , Christian Wolf , Philipp Podsiadlowski , Zhanwen Han

This paper investigates on the possible systematic difference of Supernovae Ia (SN Ia) properties related to the age and masses of the progenitors that could introduce a systematic bias between low and high redshift SN Ia's. The relation…

宇宙学与河外天体物理 · 物理学 2015-05-18 Laura Greggio

In the single degenerate scenario for the progenitors of type Ia supernovae (SNe Ia), a white dwarf rapidly accretes hydrogen- or helium-rich material from its companion star, and appears as a supersoft X-ray source. This picture has been…

高能天体物理现象 · 物理学 2015-06-18 Iminhaji Ablimit , Xiao-Jie Xu , Xiang-Dong Li

In the single degenerate (SD) scenario for Type Ia supernova (SN Ia) progenitors, an accreting white dwarf (WD) is expected to undergo a supersoft X-ray source (SSS) phase. Recently, Gilfanov & Bogdan (2010, hereafter GB10) claimed that…

高能天体物理现象 · 物理学 2015-05-20 Izumi Hachisu , Mariko Kato , Ken'ichi Nomoto

We show that long-period dwarf novae offer a promising route for making Type Ia supernovae. For typical dwarf nova duty cycles d ~ 0.1 - 0.01, mass is accreted by the white dwarf mainly during dwarf nova outbursts at rates allowing steady…

天体物理学 · 物理学 2009-11-07 A. R. King , D. J. Rolfe , K. Schenker

We examine the possibility that supernovae type Ia (SN Ia) are produced by white dwarfs accreting from Roche-lobe filling evolved companions, under the assumption that a strong optically thick stellar wind from accretor is able to stabilize…

天体物理学 · 物理学 2009-10-30 Lev R. Yungelson , Mario Livio

We present a forward-modeling framework for synthesizing Type Ia supernova (SN Ia) populations by coupling cosmological hydrodynamic simulations to binary population synthesis (BPS). Using IllustrisTNG star particles as simple stellar…

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…

太阳与恒星天体物理 · 物理学 2023-06-14 Abinaya Swaruba Rajamuthukumar , Adrian Hamers , Patrick Neunteufel , Ruediger Pakmor , Selma E. de mink

Type Ia supernovae (SNe Ia) occur in both old, passive galaxies and active, star-forming galaxies. This fact, coupled with the strong dependence of SN Ia rate on star formation rate, suggests that SNe Ia form from stars with a wide range of…

天体物理学 · 物理学 2009-11-13 Christopher J. Pritchet , D. Andrew Howell , Mark Sullivan

Using light curves and host galaxy spectra of 101 Type Ia supernovae (SNe Ia) with redshift $z \lesssim 0.3$ from the SDSS Supernova Survey (SDSS-SN), we derive the SN Ia rate as a function of progenitor age (the delay time distribution, or…

星系天体物理 · 物理学 2015-03-13 Timothy D. Brandt , Rita Tojeiro , Éric Aubourg , Alan Heavens , Raul Jimenez , Michael A. Strauss

Context. The companions of the exploding carbon-oxygen white dwarfs (CO WDs) for producing type Ia supernovae (SNe Ia) are still not conclusively confirmed. A red-giant (RG) star has been suggested to be the mass donor of the exploding WD,…

太阳与恒星天体物理 · 物理学 2019-01-30 Dongdong Liu , Bo Wang , Hongwei Ge , Xuefei Chen , Zhanwen Han

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…

高能天体物理现象 · 物理学 2015-07-15 Yushi Sato , Naohito Nakasato , Ataru Tanikawa , Ken'ichi Nomoto , Keiichi Maeda , Izumi Hachisu

The WD+MS channel of the single-degenerate scenario is currently favourable for progenitors of type Ia supernovae (SNe Ia). Incorporating the results of detailed binary evolution calculations for this channel into the latest version of a…

天体物理学 · 物理学 2009-11-13 Zhanwen Han

Type Ia supernovae (Ia-SNe) are thought to arise from the thermonuclear explosions of white dwarfs (WDs). The progenitors of such explosions are still highly debated; in particular the conditions leading to detonations in WDs are not well…

高能天体物理现象 · 物理学 2018-02-21 S. Toonen , H. B. Perets , A. S. Hamers

Mergers of carbon-oxygen (CO) white dwarfs (WDs) are considered as one of the potential progenitors of type Ia supernovae (SNe Ia). Recent hydrodynamical simulations showed that the less massive (secondary) WD violently accretes onto the…

高能天体物理现象 · 物理学 2016-04-27 Yushi Sato , Naohito Nakasato , Ataru Tanikawa , Ken'ichi Nomoto , Keiichi Maeda , Izumi Hachisu

Type Ia supernovae (SNe Ia) are among the most energetic events in the Universe. They are excellent cosmological distance indicators due to the remarkable homogeneity of their light curves. However, the nature of the progenitors of SNe Ia…

太阳与恒星天体物理 · 物理学 2023-06-28 Luhan Li , Dongdong Liu , Bo Wang

Recent observations of type Ia supernovae (SNe Ia) have discovered a subclass of 'super-Chandrasekhar' SNe Ia (SC SNe Ia) whose high luminosities and low ejecta velocities suggest that they originate from the explosions of white dwarfs…

太阳与恒星天体物理 · 物理学 2023-06-16 Margot Fitz Axen , Peter Nugent

Type Ia supernovae (SNe Ia) play an important role in astrophysics and are crucial for the studies of stellar evolution, galaxy evolution and cosmology. They are generally thought to be thermonuclear explosions of accreting carbon-oxygen…

太阳与恒星天体物理 · 物理学 2020-07-14 Bo Wang , Zhanwen Han

We have considered scenarios for the evolution of close binaries resulting in the formation of semi-detached systems in which a white dwarf can accumulate Chandrasekhar mass by accretion from a main-sequence or subgiant companion with…

天体物理学 · 物理学 2009-11-10 A. V. Fedorova , A. V. Tutukov , L. R. Yungelson