WR stars in star forming regions

被引：0
|
作者：
Schmutz, W [1 ]
Vacca, WD [1 ]
机构：
[1] ETH Zentrum, Astron Inst, CH-8092 Zurich, Switzerland
来源：
FROM EXTRASOLAR PLANETS TO COSMOLOGY: THE VLT OPENING SYMPOSIUM | 2000年
关键词：
D O I：
10.1007/10720961_45
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
WR galaxies are characterized by broad emission features at 4686 A and occasionally at 4640 A and 5805 A. The features are attributed to stellar emission from a large population of WR stars. The presence of WR stars allows a determination of the age of the starburst. In a few WR galaxies the 4640 emission line has been measured to be as large or larger than the He II 4686 line. We demonstrate that a 4640/4686 ratio larger than unity cannot be produced by any known population of WR stars and discuss the implications for the interpretation of the star formation histories in WR galaxies.
引用
收藏
页码：307 / 312
页数：6
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