Eclipsing binaries uvbyHβ photometry (Jordi+ 1997)

Details Eclipsing binaries uvbyHβ photometry (Jordi+ 1997) Eclipsing binaries uvbyHβ photometry (Jordi+ 1997)

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat..33261044j&link_type=abstract

VizieR On-line Data Catalog: J/A+A/326/1044. Originally published in: 1997A&A...326.1044J

Computer Science

Binaries: Eclipsing, Photometry: Uvby: Beta

Scientific paper

Systematic differences in photometric stellar surface gravity determination are studied by means of the comparison with empirical values derived from detached double-lined eclipsing binaries. Photometric gravities were computed using Moon & Dworetsky (1985MNRAS.217..305M) grids based on Kurucz (1979ApJS...40....1K) atmosphere models, and empiric al gravities were taken from Andersen (1991A&ARv...3...91A). Individual Stroemgren colours and β indices of each component of the binary system have to be taken into account to correctly analyze the observed differences. A compilation of data on a sample containing 30 detached double-lined eclipsing binaries with accurate (=~1-2%) determination of mass and radius and available uvbyHβ photometric data is also presented. Correction of the differences in terms of Teff and logg for the range 11000K

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