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Magnetic fields in early-type stars

机译:早期恒星磁场

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For several decades we have been cognizant of the presence of magnetic fields in early-type stars, but our understanding of their magnetic properties has recently (over the last decade) expanded due to the new generation of high-resolution spectropolarimeters (ESPaDOnS at CFHT, Narval at TBL, HARPSpol at ESO). The most detailed surface magnetic field maps of intermediate-mass stars have been obtained through Doppler imaging techniques, allowing us to probe the small-scale structure of these stars. Thanks to the effort of large programmes (e.g. the MiMeS project), we have, for the first time, addressed key issues regarding our understanding of the magnetic properties of massive (M> 8 M_⊙) stars, whose magnetic fields were only first detected about fifteen years ago. In this proceedings article we review the spectropolarimetric observations and statistics derived in recent years that have formed our general understanding of stellar magnetism in early-type stars. We also discuss how these observations have furthered our understanding of the interactions between the magnetic field and stellar wind, as well as the consequences and connections of this interaction with other observed phenomena.
机译:几十年来,我们一直在早型星的磁场存在的认识,但是我们的磁性能理解最近(在过去十年中)在CFHT由于扩大到新一代高分辨率spectropolarimeters的(ESPaDOnS, Narval在TBL,HARPSpol在ESO)。最详细的表面磁场映射的中间质量恒星已通过多普勒成像技术获得的,使我们能够探测这些分的小规模的结构。由于大项目的努力(如默剧项目),我们,第一次,讨论对我们的巨大的磁特性(M> 8M_⊙)明星,其磁场只先检测的理解关键问题大约十五年前。在这个程序文章中,我们回顾已经形成的恒星我们磁性的一般理解早期型星在最近几年得到的分光偏光观察和统计。我们还讨论了如何将这些观测结果进一步推动我们的磁场和恒星风之间的相互作用,以及造成的后果,并与其他观察到的现象这种互动的连接的理解。

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