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Astron. Astrophys. 335, L89-L92 (1998)


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Letter to the Editor

About the role of gravity waves in the angular momentum transport inside the radiative zone of the Sun

Olivier Ringot

Département d'Astrophysique Stellaire et Galactique, Observatoire de Paris, Section de Meudon, F-92195 Meudon, France

Received 14 October 1997 / Accepted 23 April 1998

Abstract

The purpose of this letter is to give a simple and general view of the effect of an internal gravity wave field, on the angular momentum distribution inside the radiative zone of the Sun. It is shown that a quasi-solid rotation of the radiative zone of the Sun cannot be a direct consequence of the action of the gravity waves produced by the convective zone.

After a brief description of the properties of gravity wave, I propose a very simple model of the role played, by internal gravity waves, on the angular momentum profile of the radiative zone of the Sun.

Key words: hydrodynamics – waves – Sun: rotation – Sun: interior

Send offprint requests to: Olivier.Ringot@obspm.fr

© European Southern Observatory (ESO) 1998

Online publication: June 26, 1998

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