Color excesses of type Ia supernovae from the single-degenerate channel model

	Color excesses of type Ia supernovae from the single-degenerate channel model
	Meng, XC1 ; Chen XF(陈雪飞)2 ; Han ZW(韩占文)2 ; Yang, WM 1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2009-11
卷号	9 期号:11 页码:1259-1269
关键词	stars: white dwarfs stars: supernova: general
ISSN号	1674-4527
通讯作者	Meng, XC (reprint author), Henan Polytech Univ, Sch Phys & Chem, Jiaozuo 454000, Peoples R China.
产权排序	第二完成单位
英文摘要	The single degenerate model is the most widely accepted progenitor model of type Ia supernovae (SNe Ia), in which a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from a main sequence or a slightly evolved star (WD+MS) to increase its mass, and explodes when its mass approaches the Chandrasekhar mass limit. During the mass transfer phase between the two components, an optically thick wind may occur and the material lost as wind may exist as circumstellar material (CSM). Searching for the CSM around a progenitor star is helpful for discriminating different progenitor models of SNe Ia. In addition, the CSM is a source of color excess. The purpose of this paper is to study the color excess produced from the single-degenerate progenitor model with an optically thick wind, and reproduce the distribution of color excesses of SNe Ia. Meng et al. systemically carried out binary evolution calculations of the WD+MS systems for various metallicities and showed the parameters of the systems before Roche lobe overflow and at the moment of supernova explosion in Meng & Yang. With the results of Meng et al., we calculate the color excesses of SNe Ia at maximum light via a simple analytic method. We reproduce the distribution of color excesses of SNe Ia by our binary population synthesis approach if the velocity of the optically thick wind is taken to be an order of magnitude of 10 km s(-1). However, if the wind velocity is larger than 100 km s(-1), the reproduction is bad.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	LARGE MAGELLANIC CLOUD ; X-RAY ; INFRARED OBSERVATIONS ; CIRCUMSTELLAR GAS ; SYMBIOTIC CHANNEL ; STELLAR EVOLUTION ; SPIRAL GALAXIES ; PROGENITORS ; DUST ; BINARIES
收录类别	SCI
原文出处	http://iopscience.iop.org/1674-4527/9/11/008/
语种	英语
WOS记录号	WOS:000272605700008
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4465]
专题	云南天文台_大样本恒星演化研究组
作者单位	1.School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式 GB/T 7714	Meng, XC,Chen XF,Han ZW,et al. Color excesses of type Ia supernovae from the single-degenerate channel model[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(11):1259-1269.
APA	Meng, XC,Chen XF,Han ZW,&Yang, WM.(2009).Color excesses of type Ia supernovae from the single-degenerate channel model.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(11),1259-1269.
MLA	Meng, XC,et al."Color excesses of type Ia supernovae from the single-degenerate channel model".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.11(2009):1259-1269.