New infrared carbon stars in the IRAS point source catalog

被引：25
|
作者：
Guglielmo, F
Epchtein, N
Arditti, F
Sevre, F
机构：
[1] OBSERV PARIS,DEPT RECH SPATIALE,CNRS,URA 264,F-92195 MEUDON,FRANCE
[2] UNIV PARIS 10,F-92000 NANTERRE,FRANCE
[3] INST ASTROPHYS,CNRS,UPR 341,F-75014 PARIS,FRANCE
来源：
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1997年 / 122卷 / 03期
关键词：
stars; carbon; late-type; AGB and post-AGB; galaxy; stellar content; infrared; circumstellar matter;
D O I：
10.1051/aas:1997149
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present new results of a search for infrared carbon stars (IRCS) based on the combination of IRAS and near infrared colours. A sample of 207 stars with IRAS colours that characterize IRCS is selected and measured in the JHKL photometric bands. Using a [12 -25] vs. K - L colour diagram, 20 new IRCS candidates are proposed. Medium resolution spectra in the similar to 6000 - 9000 Angstrom range of 8 of these candidates confirm their carbon rich nature. In addition we propose a few stars with LRS class; ''4n'' as oxygen-rich candidates, and a few stars With LRS classes ''0n'' and ''1n'' as carbon-rich.
引用
收藏
页码：489 / 494
页数：6
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