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相关论文: Type Ia Supernovae: Progenitors and Evolution with…

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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…

天体物理学 · 物理学 2007-05-23 Ken'ichi Nomoto , Hideyuki Umeda , Izumi Hachisu , Mariko Kato , Chiaki Kobayashi , Takuji Tsujimoto

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…

天体物理学 · 物理学 2009-11-10 K. Nomoto , T. Uenishi , C. Kobayashi , H. Umeda , T. Ohkubo , I. Hachisu , M. Kato

We introduce a metallicity dependence of Type Ia supernova (SN Ia) rate into the Galactic and cosmic chemical evolution models. In our SN Ia progenitor scenario, the accreting white dwarf (WD) blows a strong wind to reach the Chandrasekhar…

天体物理学 · 物理学 2009-10-30 Chiaki Kobayashi , Takuji Tsujimoto , Ken'ich Nomoto , Izumi Hachisu , Mariko Kato

We have analyzed the influence of the stellar populations, from which SN progenitors come from, on the observational outcome, including the metal free Pop. III. We use our models to study the evolution of the progenitor, the subsequent…

天体物理学 · 物理学 2007-05-23 Inma Dominguez , Peter Hoeflich , Oscar Straniero , Marco Limongi , Alessandro Chieffi

We construct a new model of Type Ia Supernovae (SNe Ia), based on the single degenerate scenario, taking account of the metallicity dependences of the white dwarf (WD) wind and the mass-stripping effect on the binary companion star. Our…

天体物理学 · 物理学 2009-12-15 Chiaki Kobayashi , Ken'ichi Nomoto

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

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

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

Models for Type Ia Supernovae (SNe Ia) are reviewed. It is shown that there are strong reasons to believe that most SNe Ia represent thermonuclear disruptions of C-O white dwarfs, when these white dwarfs reach the Chandrasekhar limit and…

天体物理学 · 物理学 2007-05-23 Mario Livio

There is no consensus on the progenitors of Type Ia supernovae (SNe Ia) despite their importance for cosmology and chemical evolution. We address this question by using our previously published catalogs of Mg, Si, Ca, Cr, Fe, Co, and Ni…

Observations suggest that the properties of Type Ia supernovae (SNe Ia) may depend on environmental characteristics, such as morphology, metallicity, and age of host galaxies. The influence of these environmental properties on the resulting…

天体物理学 · 物理学 2009-10-31 H. Umeda , K. Nomoto , C. Kobayashi , I. Hachisu , M. Kato

Type Ia supernovae (SNe Ia) can be used as the standard candlelight to determine the cosmological distances because they are thought to have a uniform fuel amount. Recent observations of several overluminous SNe Ia suggest that the white…

高能天体物理现象 · 物理学 2009-08-24 Wen-Cong Chen , Xiang-Dong Li

Type Ia supernovae (SNe Ia) have been used as excellent standardizable candles for measuring cosmic expansion, but their progenitors are still elusive. Here we report that the spectral diversity of SNe Ia is tied to their birthplace…

宇宙学与河外天体物理 · 物理学 2013-04-17 Xiaofeng Wang , Lifan Wang , Alexei V. Filippenko , Tianmeng Zhang , Xulin Zhao

Spectroscopic and photometric evidence indicates that Type Ia supernovae (SNe Ia) are the thermonuclear explosions of accreting white dwarfs. However, the progenitor binary systems and hydrodynamical models for SNe Ia are still…

天体物理学 · 物理学 2009-10-30 Ken'ichi Nomoto , Koichi Iwamoto , Nobuhiro Kishimoto

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

Type Ia supernovae (SNe Ia) are runaway thermonuclear explosions in white dwarfs that result in the disruption of the white dwarf star, and possibly its nearby stellar companion. SNe Ia occur over an immense range of stellar population age…

太阳与恒星天体物理 · 物理学 2024-12-03 Ashley J. Ruiter , Ivo R. Seitenzahl

Type Ia supernovae (SNe Ia) play a crucial role as standardizable candles in measurements of the Hubble constant and dark energy. Increasing evidence points towards multiple possible explosion channels as the origin of normal SNe Ia, with…

高能天体物理现象 · 物理学 2022-06-30 Vishal Tiwari , Or Graur , Robert Fisher , Ivo Seitenzahl , Shing-Chi Leung , Ken'ichi Nomoto , Hagai Binyamin Perets , Ken Shen

Type Ia supernovae (SNe Ia) play an important role in astrophysics, especially in the study of cosmic evolution. There are several progenitor models for SNe Ia proposed in the past years. In this paper, we have carried out a detailed study…

太阳与恒星天体物理 · 物理学 2020-07-14 B. Wang , X. Meng , X. Chen , Z. Han

Models for Type Ia Supernovae (SNe Ia) are reviewed. It is shown that there are strong reasons to believe that SNe Ia represent thermonuclear disruptions of C-O white dwarfs, when these white dwarfs reach the Chandrasekhar limit and ignite…

天体物理学 · 物理学 2007-05-23 M. Livio

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
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