Optical and X-Ray Variability of Be Stars: \(\omega\) Ori

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

Astrophysical Bulletin Pub Date : 2025-05-26 DOI:10.1134/S1990341324600777

A. F. Kholtygin, A. V. Dodin, I. A. Yakunin

引用次数: 0

Abstract

The paper is aimed at studying the variability of the Be star \(\omega\) Ori. We analyzed the optical spectra of the star taken with the 2.5-m SAI25 telescope of the Caucasus Mountain Observatory (CMO) of SAI MSU. A rapid variability of the H and He line profiles with periods from 37 to 150 minutes are revealed. The photometric light curves of \(\omega\) Ori obtained with the TESS satellite regular brightness variations with periods of 0.94 and 1.86 days have been detected. We also discuss X-ray observations and search for a magnetic field of \(\omega\) Ori.

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Be星的光学和x射线变异性：\(\omega\) Ori

本文旨在研究Be星\(\omega\) Ori的变异性。我们对该恒星的光谱进行了分析，该光谱是由SAI MSU高加索山天文台（CMO）的2.5 m SAI25望远镜拍摄的。H线和He线剖面在37 ～ 150分钟的周期内具有快速变率。利用TESS卫星获得了\(\omega\) Ori的光度曲线，其亮度变化周期分别为0.94和1.86 d。我们还讨论了x射线观测和寻找\(\omega\) Ori磁场。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.