IRAS 19227+1700: A carbon-rich or oxygen-rich start

doi:10.1016/S0275-1062(03)00035-3

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	IRAS 19227+1700: A carbon-rich or oxygen-rich start
	Chen PS(陈培生)1,2 ; He JH(何金华)1,2 ; Wang XH(汪洵浩)1,2 ; Chen, PS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
发表期刊	CHINESE ASTRONOMY AND ASTROPHYSICS
	2003-04
卷号	27 期号:2 页码:147-151
DOI	10.1016/S0275-1062(03)00035-3
产权排序	第1完成单位
收录类别	SCI
关键词	Stars : Asymptotic Giant Branch (Agb) Stars : Abundances Infrared : Stars Radio Lines : Stars
摘要	In the new version of the catalogue of carbon stars, IRAS 19227+1700 is listed as a carbon-rich sta. However, in the IRAS infrared two-color diagram, it is located in the typical region of stars with rather thick oxygen-rich circurnstellar envelopes, and not in the region commonly occupied by silicate carbon stars. MoreOver, there are other pieces of evidence that show that this star not only has the main and satellite line OH maser emissions, but also has water emission close to the central star. Its IRAS low- resolution spectrum (LRS) displays dust emission features in the range of 9-12 mum, and near infrared observation has confirmed that it really possesses a hot circurnstellar envelope. Therefore, the circumstellar envelope of IRAS 19227+1700 should be completely oxygen-rich in nature, and quite possibly its central star is also oxygen-rich.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0275-1062
URL	查看原文
WOS记录号	WOS:000183228100004
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	UNUSUAL DUST SHELLS ; CIRCUMSTELLAR ENVELOPES ; RED GIANTS ; SPECTRA
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/114a53/4167
专题	其他
通讯作者	Chen, PS (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
作者单位	1.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Joint Lab for Optical Astronomy, Chinese Academy of Sciences, Beijing 100012, 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,He JH,Wang XH,et al. IRAS 19227+1700: A carbon-rich or oxygen-rich start[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2003,27(2):147-151.
APA	Chen PS,He JH,Wang XH,&Chen, PS .(2003).IRAS 19227+1700: A carbon-rich or oxygen-rich start.CHINESE ASTRONOMY AND ASTROPHYSICS,27(2),147-151.
MLA	Chen PS,et al."IRAS 19227+1700: A carbon-rich or oxygen-rich start".CHINESE ASTRONOMY AND ASTROPHYSICS 27.2(2003):147-151.

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