搜索结果: 1-15 共查到“理学 Type Ia Supernovae”相关记录21条 . 查询时间(0.078 秒)
On Identifying the Progenitors of Type Ia Supernovae
Identifying Progenitors Type Supernovae
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2011/10/20
We propose two new means of identifying the main class of progenitors of Type Ia supernovae--single or double degenerate: (i) If the range of supernova properties is significantly determined by the ra...
Velocity Evolution and the Intrinsic Color of Type Ia Supernovae
Velocity Evolution Intrinsic Colo Type Ia Supernovae
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2011/10/11
To understand how best to use observations of Type Ia supernovae (SNe Ia) to obtain precise and accurate distances, we investigate the relations between spectra of SNe Ia and their intrinsic colors. U...
Turbulent Oxygen Flames in Type Ia Supernovae
Turbulent Oxygen Flames Type Ia Supernovae
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2011/10/8
In previous studies, we examined turbulence-flame interactions in carbon-burning thermonuclear flames in Type Ia supernovae. In this study, we consider turbulence-flame interactions in the trailing ox...
In the distributed burning regime, turbulence disrupts the internal structure of the flame, and so the idea of laminar burning propagated by conduction is no longer valid. The nature of the burning de...
We present an analysis of the B-band and V-band rise-time distributions of nearby Type Ia supernovae (SNe Ia). We use a two-stretch template-fitting method to measure the rise and decline of BV light ...
Star formation history, double degenerates and type Ia supernovae in the thin disc
stars: white dwarfs − stars: evolution − stars: binaries: close − supernovae: general − Galaxy: evolution − Galaxy: structure
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2011/9/27
We investigate the relation between the star formation history and the evolution of the double-degenerate (DD) population in the thin disc of the Galaxy, which we assume to have formed 10 Gyr before t...
Confronting 2D delayed-detonation models with light curves and spectra of Type Ia supernovae
supernovae: general
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2011/9/26
We compare models for Type Ia supernova (SN Ia) light curves and spectra with an extensive set of observations. The models come from a recent survey of 44 two-dimensional delayed-detonation models com...
Confronting 2D delayed-detonation models with light curves and spectra of Type Ia supernovae
supernovae general
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2011/8/24
We compare models for Type Ia supernova (SN Ia) light curves and spectra with an extensive set of observations. The models come from a recent survey of 44 two-dimensional delayed-detonation models com...
Gravitational Wave Emission from the Single-Degenerate Channel of Type Ia Supernovae
Gravitational Wave Emission Single-Degenerate Channel Type Ia Supernovae
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2010/12/21
The thermonuclear explosion of a C/O white dwarf as a Type Ia supernova (SN Ia) generates
a kinetic energy comparable to that released by a massive star during a SN II event. Current
observations an...
The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
The Supernova Legacy Survey 3-year sample Type Ia Supernovae photometric distances
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2011/1/10
We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15 < z < 1.1) discovered during the first three years of the Supernova Legacy Survey (SNLS). Thes...
The birth rate of subluminous and overluminous type Ia supernovae
The birth rate subluminous overluminous type Ia supernovae
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2011/1/11
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...
Sub-Chandrasekhar Mass Models For Type Ia Supernovae
Sub-Chandrasekhar Mass Models Type Ia Supernovae
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2011/1/11
For white dwarfs accreting hydrogen or helium at rates in the range 1 to 5 x 10^(-8) Msun/yr, a variety of explosive outcomes are possible well before the star reaches the Chandrasekhar mass. The expl...
Double Detonation of Sub-Chandrasekhar White Dwarfs and Subluminous Type Ia Supernovae
Sub-Chandrasekhar White Dwarfs Subluminous Type Ia Supernovae
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2011/1/11
Type Ia supernovae are thought to result from thermonuclear explosions of carbon-oxygen white dwarf stars. This model generally explains the observed properties with certain exceptions, like sub-lumin...
Characters of current type Ia supernovae data based on evolving dark energy models
dark energy theory supernova type Ia - standard candles cosmological param-eters from CMBR
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2010/11/11
We study characters of recent type Ia supernova (SNIa) data using evolving dark energy models with changing equation of state parameter w. We consider sudden-jump approximation of w for some chosen re...
Type-Ia supernovae: new clues to their progenitors from the delay-time distribution
supernovae general
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2010/11/10
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 u...