Sao stars with infrared excess in the iras point-source catalog

Sao stars with infrared excess in the iras point-source catalog
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iras 点源星表中红外过剩的 Sao 星

DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
E. Engelsman
E. Engelsman
中科院分区：
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文献类型：
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作者：
R. Oudmaijer;W. V. D. Veen;L. Waters;N. Trams;C. Waelkens;E. Engelsman

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我们已经开始在IRAS点源星表中寻找红外过剩的SAO恒星。与以前的搜索不同，使用了整个IRAS[12]-[25]-[60]颜色-颜色图。这一选择产生了462颗恒星的样本，其中相当一部分是具有星际物质的恒星。所选择的恒星可以被识别为前主序恒星、Be恒星、原行星系统、后AGB恒星等。一些天体是(视觉)双星。计算了特征温度和红外过量，并研究了它们与光谱类型的关系
We have undertaken a search for SAO stars with infrared excess in the IRAS Point Source Catalog. In contrast to previous searches, the entire IRAS [12]-[25]-[60] colour-colour diagram was used. This selection yielded a sample of 462 stars, of which a significant number are stars with circumstellar material. The stars selected can be identified as Pre-Main-Sequence stars, Be stars, Proto-Planetary Systems, Post-AGB stars, etc. A number of objects are (visual) binary stars. Characteristic temperatures and IR excesses are calculated and their relations to spectral type are investigated