| Issue |
A&A
Volume 477, Number 3, January III 2008
|
|
|---|---|---|
| Page(s) | 885 - 893 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20066841 | |
| Published online | 23 October 2007 | |
On the circulation luminosity in uniformly rotating stars
Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany e-mail: hkaehler@hs.uni-hamburg.de
Received:
29
November
2006
Accepted:
29
August
2007
The equations governing meridional circulation in uniformly rotating stars are discussed, allowing for turbulence and for baroclinic effects. Relations for barotropic stars with steady motions are generalized to baroclinic stars with turbulence. The circulation luminosity (i.e., the luminosity carried by circulation through a level surface) is shown to be zero in barotropic layers and positive in the bulk of a radiative envelope. The resulting effect is important in contact binaries.
Key words: stars: rotation / stars: interiors
© ESO, 2008
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