不同年龄星团中的磁性恒星。1 .昴星团疏散星团和昴星团运动星团

IF 1.3 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astrophysical Bulletin Pub Date : 2023-05-12 DOI:10.1134/S1990341323010078

I. I. Romanyuk, A. V. Moiseeva, I. A. Yakunin, V. N. Aitov, E. A. Semenko

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引用次数: 0

摘要

本文介绍了对昴宿星团中4颗化学性质奇特的恒星和同名运动星群中的21颗CP星的磁场进行搜索和研究的结果。在6 m BTA SAO RAS望远镜上使用圆偏振分析仪进行观测。先前在昴宿星团中指定了四颗具有异常强硅线的恒星。我们没有在它们里面发现磁场。昴星团包含7颗非磁性HgMn星和14颗不同类型的潜在磁性Ap/Bp星。我们在8个物体上检测或确认了磁场。相对于Ap/Bp，磁性CP星的比例为57 \(\%\)。在这组中没有发现一个物体的纵向磁场\(B_{e}\)会超过2kg。

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Magnetic Stars in Clusters of Different Ages. I. The Pleiades Open Cluster and the Pleiades Kinematic Group

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.

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来源期刊

Astrophysical Bulletin 地学天文-天文与天体物理

CiteScore

2.00

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Astrophysical Bulletin is an international peer reviewed journal that publishes the results of original research in various areas of modern astronomy and astrophysics, including observational and theoretical astrophysics, physics of the Sun, radio astronomy, stellar astronomy, extragalactic astronomy, cosmology, and astronomy methods and instrumentation.