CARBON STARS WITH INFRARED SPECTRA IN GROUP P OF THE IRAS/LRS DATABASE

被引：3
|
作者：
Chen, P. S. [1 ,2 ]
Yang, X. H. [3 ]
机构：
[1] Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China
[2] Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China
[3] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China
来源：
ASTRONOMICAL JOURNAL | 2012年 / 144卷 / 04期
关键词：
infrared: stars; stars: AGB and post-AGB; stars: carbon; OBJECTIVE-PRISM PLATES; IDENTIFICATION; PHOTOMETRY; EMISSION; CATALOG;
D O I：
10.1088/0004-6256/144/4/104
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Sources with infrared spectra in Group P of the IRAS/LRS database all show polycyclic aromatic hydrocarbon features. They are often planetary nebulae, H II regions, reflection/dark nebulae, Wolf-Rayet stars, or external galaxies. However, we noted that some carbon stars are also included in this group. We searched for and investigated all infrared spectra in Group P of the IRAS/LRS database. Finally, we found 11 previously known carbon stars and identified 8 new candidate carbon stars in Group P. Infrared spectra of these stars may present the 11.2 mu m SiC emission features indicative of their carbon-rich properties.
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页数：4
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