Tau Sco：克隆的发现
tau Sco: The discovery of the clones
摘要：
B0.2 V磁星Tau Sco从众多的大质量磁OB星中脱颖而出，这是因为它有着显著的超离子化风，这显然与它特有的磁场有关--磁场比磁OB星通常观测到的偶极场要复杂得多。因此，天蝎座τ星在恒星磁性的更大图景中是一个令人费解的离群点--一颗仍然无法用物理相干模型解释的恒星。最近，两颗早期的B型星被发现为Tau Sco类似物，它们的紫外光谱与Tau Sco惊人的相似，这是迄今为止OB星中唯一的。我们提出了最近的检测他们的磁场的MiMeS合作，加强之间的联系存在的磁场和superionized风。我们还将介绍正在进行的观测工作，以建立精确的磁拓扑结构，以便为现有的模型提供额外的约束，试图重现独特的风结构的天蝎座恒星。
英文摘要：
The B0.2 V magnetic star tau Sco stands out from the larger population of massive magnetic OB stars due to its remarkable, superionized wind, apparently related to its peculiar magnetic field - a field which is far more complex than the mostly-dipolar fields usually observed in magnetic OB stars. tau Sco is therefore a puzzling outlier in the larger picture of stellar magnetism - a star that still defies interpretation in terms of a physically coherent model. Recently, two early B-type stars were discovered as tau Sco analogues, identified by the striking similarity of their UV spectra to that of tau Sco, which was - until now - unique among OB stars. We present the recent detection of their magnetic fields by the MiMeS collaboration, reinforcing the connection between the presence of a magnetic field and a superionized wind. We will also present ongoing observational efforts undertaken to establish the precise magnetic topology, in order to provide additional constrains for existing models attempting to reproduce the unique wind structure of tau Sco-like stars.
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