Issue |
A&A
Volume 406, Number 2, August I 2003
|
|
---|---|---|
Page(s) | 623 - 628 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361:20030690 | |
Published online | 17 November 2003 |
Studies on stellar rotation*
III. An improvement of the treatment of the brightening distribution of rotating and tidally distorted stars
Instituto de Astrofísica de Andalucía, CSIC, Apartado 3004, 18080 Granada, Spain
Corresponding author: claret@iaa.es
Received:
17
March
2003
Accepted:
16
April
2003
We have computed new values of the gravity-darkening exponents (GDE) incorporating the interior-atmosphere coupling
by combining our method developed previously and the properties
of modern atmosphere models. The mass range where this coupling is
applied is extended in the present work from 0.08 to 40
.
The effects of the alternative theories of convective
transport of energy on GDEs is also investigated. These new values of GDEs are compared to recent observations and we found a good agreement,
mainly at the crucial transition phase. In addition, the gravity-darkening coefficients y were computed
for the u v b y U B V R I J H K passbands using recent atmosphere models
instead of the black body approximation. All this information is made
available in the form of tables and can be obtained from EDP Sciences, or
for specific calculations, directly from the author.
Key words: stars: fundamental parameters / stars: binaries: close / stars: evolution / stars: rotation
© ESO, 2003
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