The Near-surface Shear Layer (NSSL) of the Sun: A Theoretical Model

Fuente: arXiv
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Hauptverfasser: Choudhuri, Arnab Rai, Jha, Bibhuti Kumar
Format: Preprint
Veröffentlicht: 2023
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author Choudhuri, Arnab Rai
Jha, Bibhuti Kumar
author_facet Choudhuri, Arnab Rai
Jha, Bibhuti Kumar
contents We present a theoretical model of the near-surface shear layer (NSSL) of the Sun. Convection cells deeper down are affected by the Sun's rotation, but this is not the case in a layer just below the solar surface due to the smallness of the convection cells there. Based on this idea, we show that the thermal wind balance equation (the basic equation in the theory of the meridional circulation which holds inside the convection zone) can be solved to obtain the structure of the NSSL, matching observational data remarkably well.
format Preprint
id arxiv_https___arxiv_org_abs_2311_04197
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle The Near-surface Shear Layer (NSSL) of the Sun: A Theoretical Model
Choudhuri, Arnab Rai
Jha, Bibhuti Kumar
Solar and Stellar Astrophysics
We present a theoretical model of the near-surface shear layer (NSSL) of the Sun. Convection cells deeper down are affected by the Sun's rotation, but this is not the case in a layer just below the solar surface due to the smallness of the convection cells there. Based on this idea, we show that the thermal wind balance equation (the basic equation in the theory of the meridional circulation which holds inside the convection zone) can be solved to obtain the structure of the NSSL, matching observational data remarkably well.
title The Near-surface Shear Layer (NSSL) of the Sun: A Theoretical Model
topic Solar and Stellar Astrophysics
url https://arxiv.org/abs/2311.04197