NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA
文献类型：期刊论文
| 作者 | Chen PS(陈培生) ; Dan HG(单红光)
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2012-07 |
| 卷号 | 144期号:1 |
| 关键词 | infrared: stars stars: AGB and post-AGB stars: carbon |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Chen, PS (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | 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 |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/144/1/10/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000305418600010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4244]  |
| 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 | National Astronomical Observatories/Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Chen PS,Dan HG. NEWLY IDENTIFIED CARBON STARS FROM SOURCES WITH UNUSUAL IRAS LOW-RESOLUTION SPECTRA[J]. ASTRONOMICAL JOURNAL,2012,144(1). |
| APA | Chen PS,&Dan HG.(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). |
入库方式： OAI收割
来源：云南天文台
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