Angular Momentum Transport by Internal Gravity Waves. I - Pop I Main Sequence Stars

Details Angular Momentum Transport by Internal Gravity Waves. I - Pop I Main Sequence Stars Angular Momentum Transport by Internal Gravity Waves. I - Pop I Main Sequence Stars

2003-05-09

arxiv.org/abs/astro-ph/0305151v1

Astron.Astrophys.405:1025-1032,2003

Astronomy and Astrophysics

Astrophysics

Accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20030672

We examine the generation of gravity waves by the surface convection zone of low-mass main sequence stars with solar metallicity. It is found that the total momentum luminosity in waves rises with stellar mass, up to the quasi-disappearance of the convection zone around 6500K (corresponding to a mass of about 1.4 Msun for solar metallicity) where the luminosity drastically drops. We calculate the net momentum extraction associated with these waves and explain how the calculated mass dependence helps resolve the enigma of the Li dip in terms of rotational mixing, forming a coherent picture of mixing in all main sequence stars.

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