Finding Wolf-Rayet Stars in the Local Group

Finding Wolf-Rayet Stars in the Local Group
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在本地群中寻找沃尔夫拉叶星

DOI:
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发表时间:
2015
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通讯作者:
N. Morrell
N. Morrell
中科院分区:
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文献类型:
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作者:
P. Massey;K. Neugent;N. Morrell

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我们总结了过去和目前的调查沃尔夫-拉叶星之间的本星系群星系,强调如何和为什么。这些研究对于帮助我们了解大质量星星的演化,以及对恒星演化模型提供灵敏的检验都是非常宝贵的。但是,要使这种调查有用,就必须很好地理解其完整性限制。我们说明了这一点,在这篇评论中所观察到的WC/WN比在附近的星系的“演变”。最后,我们检查了我们对麦哲伦星云中WR星的新调查,它揭示了一种新类型的WN星星,以前从未见过。
We summarize past and current surveys for Wolf-Rayet stars among the Local Group galaxies, emphasizing both the how and the why. Such studies are invaluable for helping us learn about massive star evolution, and for providing sensitive tests of the stellar evolution models. But for such surveys to be useful, the completeness limits must be well understood. We illustrate that point in this review by following the "evolution" of the observed WC/WN ratio in nearby galaxies. We end by examining our new survey for WR stars in the Magellanic Clouds, which has revealed a new type of WN star, never before seen.