2MASS and WISE data analysis of Galactic Wolf-Rayet stars

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	2MASS and WISE data analysis of Galactic Wolf-Rayet stars
	Chen PS(陈培生); Dan HG(单红光)
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2014-01
卷号	349 期号:1 页码:339-360
关键词	Star: Wolf-Rayet star Infrared: star
ISSN号	0004-640X
通讯作者	Chen, PS (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	We collected almost all Galactic Wolf-Rayet (hereafter WR) stars found so far from the literature. 578 WR stars are gathered in this paper. 2MASS counterparts with good quality magnitudes in all JHK bands are listed for 364 WR stars. In addition, WISE counterparts for these sources are also identified. It is found that free-free emission is the main dominant source for the infrared excess in most WR stars up to 3.4 mu m. However at the longer wavelengths the thermal radiation is dominant. In addition, WR stars in Clusters of the Galactic center region have the strong infrared excess in the near infrared due to the dust thermal emission from the strong star forming activity in the Galactic center region. For some WR stars with the WC spectral type, in particular, with WCd type, the dust thermal emission is important radiation source while many WR stars with the WC spectral type have the near infrared flux enhancement from the broad line emission in the K band. It is also shown that many single WC stars with different spectral sub-types have different locations in the near infrared two-color diagram, in particular, WC6 and WC9d stars can be separated respectively from other spectral type stars while single WN stars with different spectral sub-types can not be separated in the near infrared two-color diagram.
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]	NEAR-INFRARED SURVEY ; O SUPERGIANTS ; VIITH CATALOG ; PHOTOMETRY ; EMISSION ; SPECTROSCOPY ; DISCOVERY ; SPECTRA ; NEBULAE ; PLANE
收录类别	SCI
原文出处	http://link.springer.com/article/10.1007%2Fs10509-013-1626-8
语种	英语
WOS记录号	WOS:000328199800035
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4255]
专题	云南天文台_其他云南天文台_中国科学院天体结构与演化重点实验室
作者单位	Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China
推荐引用方式 GB/T 7714	Chen PS,Dan HG. 2MASS and WISE data analysis of Galactic Wolf-Rayet stars[J]. ASTROPHYSICS AND SPACE SCIENCE,2014,349(1):339-360.
APA	Chen PS,&Dan HG.(2014).2MASS and WISE data analysis of Galactic Wolf-Rayet stars.ASTROPHYSICS AND SPACE SCIENCE,349(1),339-360.
MLA	Chen PS,et al."2MASS and WISE data analysis of Galactic Wolf-Rayet stars".ASTROPHYSICS AND SPACE SCIENCE 349.1(2014):339-360.