The influence of the decay of OB associations on the evolution of dwarf galaxies

被引：0
作者：
E. P. Kurbatov
机构：
[1] Russian Academy of Sciences,Institute of Astronomy
来源：
Astronomy Reports | 2010年 / 54卷
关键词：
Star Formation; Astronomy Report; Dwarf Galaxy; Stellar Mass; Dynamical Mass;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The ejection of stars from spheroidal and disk dwarf galaxies resulting from the decay of OB associations is studied. This has substantial observational consequences for disk galaxies with escape velocities up to 20 km/s, or dynamical masses up to 108M⊙. The ejection of stars can (i) reduce the abundances of the products of Type Ia supernovae and, to a lesser degree, Type II supernovae, in disk stars, (ii) chemically enrich the galactic halo and intergalactic medium, (iii) lead to the loss of 50% of the stellar mass in galaxies with masses ∼107M⊙ and the loss of all stars in systems with masses ≲105M⊙, (iv) increase the mass-to-luminosity ratio of the galaxy.
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页码：590 / 598
页数：8
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