3D Radiative MHD Simulations of Starspots II: Large-scale Structure

Fuente: arXiv
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Auteurs principaux: Bhatia, Tanayveer Singh, Panja, Mayukh, Cameron, Robert, Solanki, Sami
Format: Preprint
Publié: 2024
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author Bhatia, Tanayveer Singh
Panja, Mayukh
Cameron, Robert
Solanki, Sami
author_facet Bhatia, Tanayveer Singh
Panja, Mayukh
Cameron, Robert
Solanki, Sami
contents We compute realistic 3D radiative 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 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 modelling contribution of starspots to stellar lightcurves.
format Preprint
id arxiv_https___arxiv_org_abs_2412_16921
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle 3D Radiative MHD Simulations of Starspots II: Large-scale Structure
Bhatia, Tanayveer Singh
Panja, Mayukh
Cameron, Robert
Solanki, Sami
Solar and Stellar Astrophysics
We compute realistic 3D radiative 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 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 modelling contribution of starspots to stellar lightcurves.
title 3D Radiative MHD Simulations of Starspots II: Large-scale Structure
topic Solar and Stellar Astrophysics
url https://arxiv.org/abs/2412.16921