A SURVEY FOR INFRARED EXCESSES AMONG HIGH GALACTIC LATITUDE SAO STARS

被引：59

作者：

STENCEL, RE ^{[1
]}

BACKMAN, DE ^{[1
]}

机构：

[1] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1991年 / 75卷 / 03期

关键词：

INFRARED; SOURCES; STARS; CIRCUMSTELLAR SHELLS;

D O I：

10.1086/191553

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This project involves extending the previous analysis of infrared excesses among a volume-limited sample of 134 nearby A-K main-sequence stars to a magnitude-limited sample of stars, culled from the SAO Catalog, with excesses determined from the IRAS Point Source Catalog flux density ratios. This new sample includes 5706 B-M type stars, 379 of which have infrared excesses. Our objective involved use of a statistically complete survey of objects in a standard catalog in order to assess the frequency with which different physical processes can affect the infrared output of stars. These processes include, but are not limited to, orbiting cold particle clouds (Vega-like, star/planet formation remnants), and the onset of rapid mass loss (evolved stars). We conclude that cold disks are consistent with the infrared excesses found among A-G dwarfs and G-K giants in our sample.

引用

页码：905 / 924

页数：20

共 64 条

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