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Renormalization of KOREL-Decomposed SB2 Spectra

Published online by Cambridge University Press:  23 April 2012

Holger Lehmann  and
Andrew Tkachenko
Holger Lehmann
Affiliation:
Thüringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany email: lehm@tls-tautenburg.de
Andrew Tkachenko
Affiliation:
Instituut voor Sterrenkunde, Celestijnenlaan 200B, B-3000 Leuven, Belgium email: andrew@ster.kuleuven.be
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Abstract

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We introduce a new computer program that is able to determine the flux ratio between the components of SB2 stars from time series of composite spectra. The spectra of the components are decomposed using the KOREL program and compared to synthetic spectra computed on a grid of fundamental stellar parameters. In the result, we obtain the optimized stellar parameters together with the flux ratio. The program is tested and applied to the oscillating eclipsing binary KIC 10661783 observed by the Kepler satellite mission.

Keywords

methods: data analysisstars: binaries: spectroscopicstars: binaries: eclipsing

References

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