CH STARS IN THE LARGE MAGELLANIC CLOUD AND IN OUR GALAXY

被引：29
|
作者：
FEAST, MW
WHITELOCK, PA
机构：
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1992年 / 259卷 / 01期
关键词：
BINARIES CLOSE; STARS CARBON; GALAXY HALO; MAGELLANIC CLOUDS; INFRARED STARS;
D O I：
10.1093/mnras/259.1.6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Infrared JHK photometry is given for all the proposed LMC CH stars in the list of Hartwick & Cowley (43 stars). Their luminosities range up to M(bol) approximately -6 or brighter, making them the most massive carbon stars in the LMC. However, the kinematic discussion of Hartwick & Cowley suggests an age of a few Gyr for them. They may thus be the products of binary mergers, i.e. evolutionary products of blue stragglers of an intermediate-age population. Some analogous stars in the halo of our Galaxy may have evolved from globular cluster type blue stragglers.
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页码：6 / 16
页数：11
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