Infrared spectral evolution of carbon stars

作     者：Pei-Sheng Chen Xiao-Hong Yang Hong-Guang Shan 

作者机构：National Astronomical Observatories /Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial ObjectsChinese Academy of SciencesKunming 650011China Department of PhysicsChongqing UniversityChongqing 400044China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2010年第10卷第4期

页      面：363-382页

核心收录：

学科分类：0709[理学-地质学] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 081501[工学-水文学及水资源] 0815[工学-水利工程] 070302[理学-分析化学] 0703[理学-化学] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

基　　金：supported by grants from the National Natural Science Foundation of China (Nos. 10503011,10533050 and 10803023) the Natural Science Foundation Project of CQ CSTC (2008BB0153)and the Chinese Academy of Sciences 

主　　题：infrared:stars   stars:carbon   stars:late type 

摘      要：We collected almost all Highly Processed Data Products （HPDP） of ISO SWS01 spectra for the Galactic visual carbon stars,infrared carbon stars,extreme carbon stars and carbon-rich proto-planetary nebulae （PPNs）.Those infrared spectra are primarily analyzed and *** is shown that either spectral shapes/peaks,or main molecular/dust features are evidenced to change in the sequence of visual carbon stars,infrared carbon stars,extreme carbon stars and carbon-rich ***,in this sequence,continua are gradually changed from blue to red and locations of spectral peaks of continua are also gradually changed from short wavelengths to long *** addition,in this sequence,intensities of main molecular/dust features are also gradually changed from prominent in the short wavelengths to prominent in the long ***,from 2MASS and IRAS photometric data,the sequence is also *** in this paper strongly support the previous suggestion for the evolution sequence of carbon-rich objects in our Galaxy,that is the sequence of visual carbon stars → infrared carbon stars → extreme carbon stars → carbon-rich PPNs.