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arXiv 1009.3565astro-ph.SR
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xi 1 CMa的恒定磁场:几何还是慢旋转?

The constant magnetic field of xi 1 CMa: geometry or slow rotation?

C. Fourtune-Ravard, G. A. Wade, W. Marcolino, M. Shultz, J. Grunhut, H. F. Henrichs, the MiMeS Collaboration

摘要:

我们报告了最近对锐线β Cep变星xi1CMa(= HD 46328)的观测结果。这颗恒星的纵向磁场在近5年的观测中一直被探测到,但没有观察到强烈的变化。在这张海报中,我们评估了几乎恒定的纵向场是否是由于固有的慢旋转,或者更确切地说,如果恒星或磁性几何负责。

英文摘要:

We report recent observations of the sharp-lined magnetic beta Cep pulsator xi 1 CMa (= HD 46328). The longitudinal magnetic field of this star is detected consistently, but it is not observed to vary strongly, during nearly 5 years of observation. In this poster we evaluate whether the nearly constant longitudinal field is due to intrinsically slow rotation, or rather if the stellar or magnetic geometry is responsible.

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