On the rotation of the chemically peculiar magnetic star 56 Arietis

被引：36

作者：

Adelman, SJ

Malanushenko, V

Ryabchikova, TA

Savanov, I

机构：

[1] The Citadel, Dept Phys, Charleston, SC 29409 USA

[2] Crimean Astrophys Observ, UA-334413 Nauchnyi, Crimea, Ukraine

[3] Russian Acad Sci, Inst Astron, Moscow 109017, Russia

[4] Univ Vienna, Inst Astron, A-1180 Vienna, Austria

[5] Isaac Newton Inst Chile, Crimean Branch, Nauchnyi, Ukraine

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 375卷 / 03期

关键词：

stars : chemically peculiar; stars : variables : general; stars : rotation; stars : individual : 56 Ari;

D O I：

10.1051/0004-6361:20010895

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This study used extensive sets of phase resolved photometric and spectroscopic data obtained by the authors and supplemented by that from the literature to investigate the light and equivalent width variations of the mCP star 56 Ari. Its rotational period is found to be increasing at a rate of about 2 s per 100 years. In addition there is evidence for a second period whose length is about 5 years which is attributed to the precession of the axis of rotation.

引用

页码：982 / 988

页数：7

共 34 条

[1]

Adelman S. J, 1999, BALT ASTRON, V8, P369

[2]

Adelman SJ, 1995, ASTRON ASTROPHYS SUP, V114, P253

[3] uvby photometry of the magnetic CP stars 20 Eridani, HR 1297, 12 Canis Majoris, and HD 134214 [J].