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

被引：4

作者：

Romanyuk, I. I. ^{[1
]}

Moiseeva, A. V. ^{[1
]}

Yakunin, I. A. ^{[1
,2
]}

Aitov, V. N. ^{[1
]}

Semenko, E. A. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia

[2] St Petersburg Univ, St Petersburg 199034, Russia

[3] Natl Astron Res Inst Thailand, Chiang Mai 50180, Thailand

来源：

ASTROPHYSICAL BULLETIN | 2023年 / 78卷 / 01期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

stars: chemically peculiar; stars: magnetic fields; CHEMICALLY PECULIAR STARS; ELEMENTAL ABUNDANCE ANALYSES; MAIN STELLAR SPECTROGRAPH; B-TYPE STARS; FIELD MEASUREMENTS; CP-STARS; FUNDAMENTAL PARAMETERS; DAO SPECTROGRAMS; A-TYPE; ROTATIONAL VELOCITIES;

D O I：

10.1134/S1990341323010078

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：36 / 48

页数：13

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