On Internal Gravity Waves in Low-mass Stars

The Sun's rotation profile and the lithium content of solar-type stars have long been challenging to stellar evolution. Classical hydrodynamical stellar models predict that the solar interior must rotate highly differentially, and produce over-destruction of lithium, in disagreement with astero...

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Bibliographic Details
Main Authors: Charbonnel, Corinne, Talon, Suzanne
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:The Sun's rotation profile and the lithium content of solar-type stars have long been challenging to stellar evolution. Classical hydrodynamical stellar models predict that the solar interior must rotate highly differentially, and produce over-destruction of lithium, in disagreement with asteroseismic and spectroscopic observations. The introduction of internal gravity waves (hereafter IGWs) in modern and sophisticated stellar models has recently solved these long-standing problems. Here we recall the main characteristics of these waves. We discuss the physics of wave generation and filtering as well as the existence of the so-called shear layer oscillation (SLO).
ISSN:0094-243X
DOI:10.1063/1.2818965