Supernova rates and the reddening of Wolf-Rayet stars
Supernova rates and the reddening of Wolf-Rayet stars
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DOI：
10.1086/171265
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发表时间：
1992-05
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影响因子：
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通讯作者：
S. Bergh
中科院分区：
文献类型：
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作者：
S. Bergh
由于沃尔夫-拉叶星非常年轻，它们与形成它们的巨大尘埃云密切相关。因此，W-R恒星的平均红度非常高。在距离太阳2 kpc范围内的W-R恒星的吸收值的频率分布可以用n(A v)∞exp （A v /10）的关系来充分表示，即一半的W-R恒星的吸收值为A v bb0 7等。W-R恒星被认为是大质量核心坍缩超新星的祖先
Because Wolf-Rayet stars are very young they remain closely associated with the massive dusty clouds in which they were formed. As a result W-R stars are, on average, very highly reddened. It is found that the frequency distribution of absorption values for W-R stars within 2 kpc of the Sun is adequately represented by the relation n(A v ) ∞ exp (-A v /10), i.e., half of all W-R stars have A v > 7 mag. W-R stars are believed to be the progenitors of massive core-collapse supernovae