Limb-darkening coefficients in binaries Virtual Observatory Resource

Authors
  1. VAN HAMME W.
  2. Published by
    CDS
Abstract

We present monochromatic, passband-specific, and bolometric limb-darkening coefficients for a linear as well as nonlinear logarithmic and square root limb-darkening laws. These coefficients, including the bolometric ones, are needed when modeling binary star light curves with the latest version of the Wilson-Devinney light curve program. We base our calculations on the most recent ATLAS stellar atmosphere models for solar chemical composition stars with a wide range of effective temperatures and surface gravities. We examine how well various limb-darkening approximations represent the variation of the emerging specific intensity across a stellar surface as computed according to the model. For binary star light curve modeling purposes, we propose the use of a logarithmic or a square root law. We design our tables in such a manner that the relative quality of either law with respect to another can be easily compared. Since the computation of bolometric limb-darkening coefficients first requires monochromatic coefficients, we also offer tables of these coefficients (at 1221 wavelength values between 0.09 nm and 160 {mu}m) and tables of passband-specific coefficients for commonly used photometric filters.

Keywords
  1. eclipsing-binary-stars
  2. astronomical-models
  3. stellar-atmospheres
Bibliographic source Bibcode
1993AJ....106.2096V
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/106/2096
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/106/2096
Document Object Identifer DOI
doi:10.26093/cds/vizier.51062096

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/106/2096
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/106/2096
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/106/2096
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History

1999-02-27T12:39:55Z
Resource record created
1999-02-27T12:39:55Z
Created
2023-04-06T16:50:04Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr