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The Broadening Functions Technique

Published online by Cambridge University Press:  23 April 2012

Slavek M. Rucinski
Slavek M. Rucinski*
Affiliation:
Department of Astronomy & Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, Canada, M5S 3H4 email: rucinski@astro.utoronto.ca
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Abstract

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Essential assumptions and features of the Broadening Function (BF) technique are presented. A distinction between BF determination and the BF concept and utilization is made. The BF's can be determined in various ways. The approach based on linear deconvolution involving stellar templates, as used during the DDO program (1999 – 2008) is described, but the LSD technique would also give excellent results. The BF concept to prove and/or verify photometric light-curve solutions has so far been very limited to only a few W UMa-type binaries, with AW UMa giving particularly unexpected results.

Keywords

line: profilesmethods: data analysistechniques: spectroscopictechniques: radial velocities

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