NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA

doi:10.1088/0004-6256/144/1/10

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	NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA
	Chen PS(陈培生); Dan HG(单红光); Chen, PS (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊	ASTRONOMICAL JOURNAL
	2012-07
卷号	144 期号:1
DOI	10.1088/0004-6256/144/1/10
产权排序	第1完成单位
收录类别	SCI
关键词	Infrared: Stars Stars: Agb And post-Agb Stars: Carbon
摘要	The 11.2 mu m SiC feature in either emission or absorption in the infrared is an important indicator for identification of carbon stars. Sources whose infrared spectra are sorted in Group U of the Infrared Astronomical Satellite (IRAS) low-resolution spectrum (LRS) are good samples for finding objects with the 11.2 mu m SiC feature. Therefore, we have carefully checked all spectra in Group U of the LRS. We have found 13 new objects, which probably have SiC emission, sometimes with unusually broad features, that are presumed to be carbon-rich objects. In addition, their evolutionary types are also estimated from IRAS and Two Micron All Sky Survey two-color diagrams. Besides finding 13 new carbon-rich objects, another important result in this paper is that four sources are estimated as new extreme carbon stars (ECSs) and five previously known carbon stars sorted in the Group U of the IRAS LRS are also estimated as ECSs.
项目资助者	NNSFC [11033007, 11173056]
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6256
URL	查看原文
归档日期	2012-06-11
WOS记录号	WOS:000305418600010
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	GIANT BRANCH STARS ; NEAR-INFRARED PHOTOMETRY ; RICH PROTOPLANETARY NEBULAE ; POINT-SOURCE CATALOG ; 21 MICRON FEATURE ; SILICON-CARBIDE ; CIRCUMSTELLAR ENVELOPES ; POST-AGB ; SPACE DISTRIBUTION ; PLANETARY-NEBULAE
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4244
专题	其他中国科学院天体结构与演化重点实验室
通讯作者	Chen, PS (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位	National Astronomical Observatories/Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650011, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Chen PS,Dan HG,Chen, PS . NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA[J]. ASTRONOMICAL JOURNAL,2012,144(1).
APA	Chen PS,Dan HG,&Chen, PS .(2012).NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA.ASTRONOMICAL JOURNAL,144(1).
MLA	Chen PS,et al."NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA".ASTRONOMICAL JOURNAL 144.1(2012).

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