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The effects of rotation on wave-induced transport in stars: from weakly to strongly stratified radiative zones

Authors :
André, Q.
Mathis, S.
Amard, L.
Publication Year :
2018
Publisher :
arXiv, 2018.

Abstract

Internal waves propagating in stellar radiative zones can lead to efficient angular momentum transport, that should occur throughout the whole lifetime of stars. They thus play a key role in shaping the internal rotation profile of these regions, that can be probed by asteroseismology. We present a new analytical study of their propagation and dissipation near the equatorial plane. We include the effects of rotation and differential rotation without making any assumption on their relative strength relative to that of the background stable stratification. This analytical framework allows in principle to scan the efficiency of the wave-induced transport of angular momentum. The computations goes from the pre-main sequence, during which the restoring forces associated with rotation and stratification can be of the same order, to the later stages of evolution, for which stratification tends to dominate over rotation. A first application to the case of a sun-like star is finally discussed.<br />Comment: 7 pages, 3 figures, SF2A conference

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....367e071d70a76428073524c4df9ea371
Full Text :
https://doi.org/10.48550/arxiv.1811.02818