3D radiative MHD simulations of starspots II. Large-scale structure

被引：0

作者：

Bhatia, Tanayveer Singh ^{[1
]}

Panja, Mayukh ^{[1
]}

Cameron, Robert H. ^{[1
]}

Solanki, Sami K. ^{[1
]}

机构：

[1] Max Planck Inst Solar Syst Res, Justus von Liebig Weg 3, D-37077 Gottingen, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2025年 / 693卷

基金：

欧洲研究理事会;

关键词：

stars: atmospheres; stars: late-type; stars: magnetic field; starspots; NUMERICAL SIMULATIONS; MAGNETIC-FIELD; VELOCITY; CONVECTION; SOAP; TOOL;

D O I：

10.1051/0004-6361/202452747

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We computed realistic 3D radiative magnetohydrodynamic (MHD) near-surface models of starspots with substantial penumbrae on cool main sequence stars using the MURaM simulation code. This work is an improvement on the previous starspot models in a slab geometry. The umbra, penumbra, and the quiet star for all starspots are distinct, not only in intensity and temperature, but also in thermodynamic and velocity structure. These models represent a significant step towards modeling the starspot contribution to stellar light curves.

引用

页数：7

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