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Eclipsing binaries as a test for synthetic photometry

Published online by Cambridge University Press:  01 August 2006

U. Heiter ,
B. Smalley ,
Ch. Stütz ,
F. Kupka  and
O. Kochukhov
U. Heiter
Affiliation:
Department of Astronomy and Space Physics, Uppsala University, Box 515, SE-75120 Uppsala email: Ulrike.Heiter@astro.uu.se
B. Smalley
Affiliation:
Astrophysics Group, School of Chemistry and Physics, Keele University, Keele, Staffordshire ST5 5BG email: bs@astro.keele.ac.uk
Ch. Stütz
Affiliation:
Institute for Astronomy (IfA), University of Vienna, Türkenschanzstrasse 17, A-1180 Vienna email: james@jan.astro.univie.ac.at
F. Kupka
Affiliation:
Max-Planck-Institute for Astrophysics, Karl-Schwarzschild Str. 1, 85741 Garching, Germany email: fk@mpa-garching.mpg.de
O. Kochukhov
Affiliation:
Department of Astronomy and Space Physics, Uppsala University, Box 515, SE-75120 Uppsala email: Ulrike.Heiter@astro.uu.se
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Abstract

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Narrow band photometry is a useful tool to characterize large numbers of stars, but observed colors and indices must be connected to astrophysical parameters by synthetic photometry. We present synthetic Hβ indices calculated from 1D model atmospheres implementing different convection treatments. The calculated indices are transformed to the standard system using observed medium-resolution spectra. We test the synthetic photometry with observed indices of eclipsing binary systems. The computed indices agree with the observed ones up to an amount expected from the observational errors, the accuracy of the atmospheric parameters, and computational uncertainties.

Keywords

Stars: atmospherestechniques: photometricbinaries: eclipsing
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 169 - 171
Copyright
Copyright © International Astronomical Union 2007

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