Angular Momentum Transport in the Sun’s Radiative Zone by Gravito-Inertial Waves

Internal gravity waves constitute an efficient process for angular momentum transport over large distances. They are now seen as an important ingredient in understanding the evolution of stellar rotation and can explain the Sun’s quasi-flat internal-rotation profile. Because the Sun’s rotation frequ...

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Bibliographic Details
Published in:Solar physics 2008-09, Vol.251 (1-2), p.101-118
Main Authors: Mathis, S., Talon, S., Pantillon, F.-P., Zahn, J.-P.
Format: Article
Language:English
Subjects:
Asteroseismology
Astrophysics
Astrophysics and Astroparticles
Atmospheric Sciences
Gravity waves
Helioseismology
Internal waves
Mhd Connections
Physics
Physics and Astronomy
Radiation
Solar physics
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Wave propagation
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Summary:Internal gravity waves constitute an efficient process for angular momentum transport over large distances. They are now seen as an important ingredient in understanding the evolution of stellar rotation and can explain the Sun’s quasi-flat internal-rotation profile. Because the Sun’s rotation frequency is of the same order as that of the waves, it is now necessary to refine our description of wave propagation and to take into account the action of the Coriolis acceleration in a coherent way. To achieve this goal, we adopt the traditional approximation, which can be applied to stellar radiation zones under conditions that are given. We present the modified transport equations and their numerical evaluation in a parameter range that is significant for the Sun. Consequences for the transport of angular momentum inside solar and stellar radiative regions are discussed.
ISSN:0038-0938
1573-093X
DOI:10.1007/s11207-008-9157-0