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.

引用

页数：4

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