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.
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页数：7
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