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3D MHD modelling of a chromosphere above the sun's convective zone

Published online by Cambridge University Press:  12 August 2011

Rui Pinto  and
Sacha Brun
Rui Pinto
Affiliation:
Service d'Astrophysique - CEA Saclay/DSM/Irfu, 91191 Gif-sur-Yvette Cedex, France, email: [email protected]
Sacha Brun
Affiliation:
Service d'Astrophysique - CEA Saclay/DSM/Irfu, 91191 Gif-sur-Yvette Cedex, France, email: [email protected]
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Abstract

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We report on the extension of the ASH code to include an atmospheric stable layer (i.e not convective). This layer is meant to model the sun's chromosphere within the anelastic approximation limits while coping with the wide range of densities, time and spatial scales between r = 0.7 R⊙ and r = 1.03 R⊙. Convective overshoot into the stable atmospheric layer is observed in a region ~ 0.01 R⊙ thick, exciting waves which propagate upwards into the atmosphere.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S271: Astrophysical Dynamics: From Stars to Galaxies , June 2010 , pp. 393 - 394
Copyright
Copyright © International Astronomical Union 2011

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