Abstract

The paper presents the results of searching and studying magnetic fields of 4 chemically peculiar stars in the Pleiades open cluster and 21 CP stars in the kinematic group of the same name. Observations were carried out at the 6-m BTA SAO RAS telescope with a circular polarization analyzer. Four stars with anomalously strong silicon lines were previously specified in the Pleiades cluster. We did not find a magnetic field in any of them. The Pleiades group contains seven non-magnetic HgMn stars and 14 potentially magnetic Ap/Bp stars of various types. We detected or confirmed magnetic fields in eight objects. The fraction of magnetic CP stars is 57\(\%\) relative to Ap/Bp. Not a single object was found in the group, in which the longitudinal magnetic field \(B_{e}\) would exceed 2 kG.

中文翻译：

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不同年龄星团中的磁星。一、昴星团疏散星团和昴星团运动学群

摘要

本文介绍了对昴宿星疏散星团中 4 颗化学性质奇特的恒星和同名运动学群中的 21 颗 CP 星的磁场进行搜索和研究的结果。观测是在带有圆偏振分析仪的 6 米 BTA SAO RAS 望远镜上进行的。先前在昴宿星团中指定了四颗具有异常强硅线的恒星。我们没有在其中任何一个中发现磁场。昴星团包含七颗非磁性 HgMn 星和 14 颗潜在磁性的各种类型的 Ap/Bp 星。我们在八个物体中检测到或确认了磁场。相对于 Ap/Bp，磁性 CP 星的比例为 57 \(\%\) 。该组中没有发现任何一个纵向磁场\(B_{e}\)超过2 kG的物体。