2014A&A...567A...3C -
Astronomy and Astrophysics, volume 567A, 3-3 (2014/7-1)
Theoretical gravity and limb-darkening coefficients for the MOST satellite photometric system.
CLARET A., DRAGOMIR D. and MATTHEWS J.M.
Abstract (from CDS):
We present new calculations of limb and gravity-darkening coefficients to be used as input in many fields of stellar physics such as synthetic light curves of double-lined eclipsing binaries and planetary transits, studies of stellar diameters or line profiles in rotating stars. We compute the limb-darkening coefficients specifically for the photometric system of the satellite MOST (Microvariability and Oscillations in STars). All computations were performed by adopting the least-square method, but for completeness we also performed calculations for the linear and bi-parametric approaches by adopting the flux conservation method. The passband gravity-darkening coefficients y(λ) were computed by adopting a more general differential equation, which also takes the effects of convection into account. We used two stellar atmosphere models: ATLAS (plane-parallel) and PHOENIX (spherical and quasi-spherical). We adopted six laws to describe the specific intensity distribution: linear, quadratic, square root, logarithmic, exponential, and a more general one with four terms. The covered ranges of Teff, logg, metallicities, and microturbulent velocities are (1500-50000K, 0-5.5, -5.0-+1.0, 0-8km/s), respectively.
Abstract Copyright:
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Journal keyword(s):
binaries: eclipsing - planetary systems - binaries: close - stars: atmospheres - stars: evolution
VizieR on-line data:
<Available at CDS (J/A+A/567/A3): table2.dat-table23.dat>
Simbad objects:
4
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