New limb-darkening coefficients and synthetic photometry for model-atmosphere grids at Galactic, LMC and SMC abundances

作者：Howarth Ian D^*

来源：Monthly Notices of the Royal Astronomical Society, 2011, 413(3): 1515-1523.

DOI：10.1111/j.1365-2966.2011.18122.x

• stars: atmospheres
• binaries: eclipsing
• planetary systems

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 T(eff) = 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.

• 出版日期2011-5