IRAS 19227+1700: A carbon-rich or oxygen-rich start
文献类型：期刊论文
| 作者 | Chen, PS; He, JH; Wang, XH |
| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2003-04-01 |
| 卷号 | 27期号:2页码:147-151 |
| 关键词 | stars : asymptotic giant branch (AGB) stars : abundances infrared : stars radio lines : stars |
| ISSN号 | 0275-1062 |
| DOI | 10.1016/S0275-1062(03)00035-3 |
| 英文摘要 | 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. |
| WOS关键词 | UNUSUAL DUST SHELLS ; CIRCUMSTELLAR ENVELOPES ; RED GIANTS ; SPECTRA |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000183228100004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37442]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Chen, PS |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China 2.Chinese Acad Sci, Joint Lab Opt Astron, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, PS,He, JH,Wang, XH. 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.(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. |
入库方式： OAI收割
来源：国家天文台
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