He-r星HD 37479磁场结构的特殊特征$\boldsymbol{\sigma}$ Ori E

IF 1.4 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astrophysical Bulletin Pub Date : 2025-08-21 DOI:10.1134/S1990341325600231

Yu. Yu. Glagolevskij, A. F. Nazarenko

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引用次数: 0

摘要

HD 37479的磁场结构与偶极子的结构相对应，偶极子沿轴方向偏移了一个显著值$\Delta a=0.2R_{*}$，沿轴方向偏移了一个显著值$\Delta a=0.05R_{*}$。因此，磁场在恒星表面的分布极不均匀。平均表面磁场的最大值等于$B_{s}=+2591$和$-7486$ G.正是在这些区域出现了最大的风，并且在大约相同的区域也观察到最大的氦丰度。稀薄的气体云沿着磁赤道延伸，在磁赤道形成了H $\alpha$发射线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Special Features of the Magnetic Field Structure of the He-r Star HD 37479 $\boldsymbol{\sigma}$Ori E$

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Special Features of the Magnetic Field Structure of the He-r Star HD 37479 $\boldsymbol{\sigma}$Ori E

The structure of the magnetic field of HD 37479 corresponds to the structure of a dipole displaced along the axis by a significant value $\Delta a=0.2R_{*}$ and across the axis by the value $\Delta a=0.05R_{*}$. As a result, the magnetic field is distributed extremely unevenly over the stellar surface. The maximum values of the average surface magnetic field are equal to $B_{s}=+2591$ and $-7486$ G. It is in these areas that the maximum wind occurs, and also in approximately these same areas the maximum helium abundance is observed. A cloud of rarefied gas extends along the magnetic equator, in which H$\alpha$ emission lines are formed.

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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.

He-r星HD 37479磁场结构的特殊特征\(\boldsymbol{\sigma}\) Ori E

摘要