Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.6609v&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #66.09; Bulletin of the American Astronomical Society, Vol. 24, p.1225
Astronomy and Astrophysics
Astronomy
Scientific paper
Using the latest ATLAS stellar atmosphere models for stars with effective temperatures ranging from 3500 to 50000 K, log g's between 0.0 and 5.0 (in cgs units), and solar chemical abundances, we examine various limb-darkening approximations and test how well they represent the model specific intensity across the surface of the star. We present limb-darkening coefficients for a linear, a logarithmic, and a square root law. "Monochromatic" coefficients are obtained for each of the 1221 wavelength intervals of the current ATLAS grid (from 9.09 nm to 160 microns), and passband-specific coefficients are computed using appropriate filter response functions. We also list bolometric limb-darkening coefficients for use in the latest version of the Wilson-Devinney light and radial velocity curve program.
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