The Chemical Classification of the AGB Star IRAS 17515-2407
The chemical classification of IRAS 17515-2407 has been debated for a long time. Up to now there are two contenders, oxygen-rich or carbon-rich. We believe that IRAS 17515-2407 is an oxygen-rich source: because (i) it shows the silicate self-absorbed emission; (ii) in the near infrared-IRAS diagram it is located in the oxygen-rich object region and (iii) particularly, it has detected SiO maser emission.
作 者： Pei-Sheng Chen Pin Zhang 作者单位： Pei-Sheng Chen(National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences,Kunming 650011)Pin Zhang(National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences,Kunming 650011;Cosmic Ray Institute, Yunnan University, Kunming 650091)
刊 名： 天体物理学报(英文版) ISTIC SCI 英文刊名： CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 年，卷(期)： 2003 3(6) 分类号： P14 关键词： stars: AGB - stars: chemical classification - stars: maser - infrared:stars