New limb-darkening coefficients and synthetic photometry for model-atmosphere grids at Galactic, LMC and SMC abundances
Abstract
New grids of ATLAS9 models have been calculated using revised convection parameters and updated opacity-distribution functions (ODFs), for chemical compositions intended to be representative of solar, [M/H] =+0.3, +0.5, Large Magellanic Cloud and Small Magellanic Cloud abundances. The grids cover Teff= 3.5-50 kK, from log g= 5.0 to the effective Eddington limit. Limb-darkening coefficients and synthetic photometry are presented in the UBVRIJHKLM, uvby, ugriz, WFCAM, Hipparcos/Tycho and Kepler passbands for these models and for Castelli's comparable 'new-ODF' grids. Flux distributions are given for the new models. The sensitivity of limb-darkening coefficients to the adopted physics is illustrated.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 2011
- DOI:
- 10.1111/j.1365-2966.2011.18122.x
- arXiv:
- arXiv:1011.2631
- Bibcode:
- 2011MNRAS.413.1515H
- Keywords:
-
- stars: atmospheres;
- binaries: eclipsing;
- planetary systems;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- doi:10.1111/j.1365-2966.2011.18122.x