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相关论文: Constraining Type Ia Supernova Delay Time with Spa…

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We present a measurement of the distant Type Ia supernova rate derived from the first two years of the Canada -- France -- Hawaii Telescope Supernova Legacy Survey. We observed four one-square degree fields with a typical temporal frequency…

Near-infrared spectra of the subluminous Type Ia SN1999by are presented which cover the time evolution from about 4 days before to 2 weeks after maximum. Analysis of these data was accomplished through the construction of an extended set of…

天体物理学 · 物理学 2009-11-07 P. Hoeflich , C. Gerardy , R. Fesen , S. Sakai

Our aim is to show how different hypotheses about Type Ia supernova progenitors can affect Galactic chemical evolution. We include different Type Ia SN progenitor models, identified by their distribution of time delays, in a very detailed…

星系天体物理 · 物理学 2015-05-13 F. Matteucci , E. Spitoni , S. Recchi , R. Valiante

We present the results of a novel new search of the first data-release from the Sloan Digital Sky Survey (SDSS-DR1) for the spectra of supernovae. The use of large spectroscopic galaxy surveys offers the prospect of obtaining improved…

天体物理学 · 物理学 2009-11-10 Darren S. Madgwick , Paul Hewett , Daniel Mortlock , Lifan Wang

Using population synthesis, we study a double-degenerate (DD) scenario for SNe Ia, aiming to estimate the maximum possible contribution to the rate of SNe from this scenario and the dependence of the delay-time distribution (DTD) on it. We…

太阳与恒星天体物理 · 物理学 2016-10-25 L. R. Yungelson , A. G. Kuranov

Although type Ia supernovae (SNe Ia) are very useful in many astrophysical fields, their exact progenitor nature is still unclear. A basic method to distinguish the different progenitor models is to search the signal from the single…

高能天体物理现象 · 物理学 2018-03-21 Xiangcun Meng , Zhanwen Han

We compute the Type Ia supernova rates in typical elliptical galaxies by varying the progenitor models for Type Ia supernovae. To do that a formalism which takes into account the delay distribution function (DTD) of the explosion times and…

宇宙学与河外天体物理 · 物理学 2015-06-16 I. Bonaparte , F. Matteucci , S. Recchi , E. Spitoni , A. Pipino , V. Grieco

A promising model for normal Type Ia supernova (SN Ia) explosions are delayed detonations of Chandrasekhar-mass white dwarfs, in which the burning starts out as a subsonic deflagration and turns at a later phase of the explosion into a…

太阳与恒星天体物理 · 物理学 2015-06-16 F. Ciaraldi-Schoolmann , I. R. Seitenzahl , F. K. Roepke

(ABRIDGED) We show that Type Ia supernovae (SNe Ia) are formed within both very young and old stellar populations, with observed rates that depend on the stellar mass and mean star-formation rates (SFRs) of their host galaxies. Models where…

The delay time distribution of (DTD) of binary neutron stars (BNS) remains poorly constrained, mainly by the small known population of Galactic binaries, the properties of short gamma-ray burst host galaxies, and inferences from $r$-process…

星系天体物理 · 物理学 2019-06-12 Mohammadtaher Safarzadeh , Edo Berger

By means of 3D hydrodynamic simulations, we study how Type Ia supernovae (SNe) explosions affect the star formation history and the chemical properties of second generation (SG) stars in globular clusters (GC). SG stars are assumed to form…

星系天体物理 · 物理学 2021-08-18 Elena Lacchin , Francesco Calura , Enrico Vesperini

We present a comprehensive test of the cosmic distance duality relation (DDR) using a combination of strong gravitational lensing (SGL) time delay measurements and Type Ia supernovae (SNe Ia) data. We investigate three different…

宇宙学与河外天体物理 · 物理学 2025-01-16 Jing-Zhao Qi , Yi-Fan Jiang , Wan-Ting Hou , Xin Zhang

The existence of multiple subclasses of type Ia supernovae (SNeIa) has been the subject of great debate in the last decade. One major challenge inevitably met when trying to infer the existence of one or more subclasses is the time…

Strongly lensed Type Ia supernovae (LSNe Ia) are a promising probe to measure the Hubble constant ($H_0$) directly. To use LSNe Ia for cosmography, a time-delay measurement between the multiple images, a lens-mass model, and a mass…

宇宙学与河外天体物理 · 物理学 2024-12-11 S. Huber , S. H. Suyu

In Paper I (Safarzadeh & Berger 2019) we studied the determination of the delay time distribution (DTD) of binary neutron stars (BNS) through scaling relations between halo/stellar mass and the star formation history (SFH) of galaxies…

高能天体物理现象 · 物理学 2019-06-12 Mohammadtaher Safarzadeh , Edo Berger , Joel Leja , Joshua S. Speagle

Studying the correlation of type Ia supernova rates (SNR) with host galaxy properties is an important step in understanding the exact nature of type Ia supernovae. We use SNe Ia from the SDSS-II sample, spectroscopically determined masses…

宇宙学与河外天体物理 · 物理学 2015-06-12 Yan Gao Chris J. Pritchet

We compare the rise times of nearby and distant Type Ia supernovae (SNe Ia) as a test for evolution using 73 high-redshift spectroscopically-confirmed SNe Ia from the first two years of the five year Supernova Legacy Survey (SNLS) and…

We use type-Ia supernovae (SNe Ia) discovered by the SDSS-II SN Survey to search for dependencies between SN Ia properties and the projected distance to the host galaxy center, using the distance as a proxy for local galaxy properties…

Supernovae of type Ia (SNe Ia) are very important for cosmography. To exclude systematic effects in linking the observed light of distant SNe Ia to the parameters of cosmological models, one has to understand the nature of supernova…

天体物理学 · 物理学 2009-11-07 S. Blinnikov , E. Sorokina

The iron mass in galaxy clusters is about 6 times larger than could have been produced by core-collapse supernovae (SNe), assuming the stars in the cluster formed with a standard initial mass function (IMF). SNe Ia have been proposed as the…

天体物理学 · 物理学 2009-11-10 Dan Maoz , Avishay Gal-Yam