Wolf-Rayet stellar populations in the most metal-deficient blue compact dwarf galaxies

Authors
Izotov, Y Chaffee, F Guseva, N Thuan, T
Citation
Y. Izotov et al., Wolf-Rayet stellar populations in the most metal-deficient blue compact dwarf galaxies, ASTRO SP SC, 277, 2001, pp. 277-280
Citations number
10
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICS AND SPACE SCIENCE
ISSN journal
0004640X → ACNP
Volume
277
Year of publication
2001
Supplement
1
Pages
277 - 280
Database
ISI
SICI code
0004-640X(2001)277:<277:WSPITM>2.0.ZU;2-7
Abstract
We discuss the properties of the Wolf-Rayet (WR) stellar population in the most metal-deficient blue compact dwarf (BCD) galaxies. It is shown that ma ssive stars with stellar wind are present in several BCDs with oxygen abund ance 12 + log O/H < 7.6. In particular, a variety of late nitrogen (WN7 - W N11) and early carbon (WC4) Wolf-Rayet stars are detected. This finding has an impact on the understanding the evolution of the massive stars in low-m etallicity environment.