A Catalogue of Temperatures for Kepler Eclipsing Binary Stars

Abstract

We have combined the Kepler Eclipsing Binary Catalogue with information from the HES, KIS and 2MASS photometric surveys to produce spectral energy distribution fits to over 2600 eclipsing binaries in the catalogue over a wavelength range of 0.36 to 2.16Å. We present primary ($T_1$) and secondary ($T_2$) stellar temperatures, plus information on the stellar radii and system distance ratios. The derived temperatures are on average accurate to 370K in $T_1$ and 620K in $T_2$. Our results improve on the similarly derived physical parameters of the Kepler Input Catalogue through consideration of both stars of the binary system rather than a single star model, and inclusion of additional U band photometry. We expect these results to aid future uses of the Kepler Eclipsing Binary data, both in target selection and to inform users of the extremely high precision light curves available. We do not include surface gravities or system metallicities, as these were found to have an insignificant effect on the observed photometric bands.

10 pages. Accepted for publication in MNRAS 5th November 2013. Catalogue data available at http://cdsarc.u-strasbg.fr/cgi-bin/VizieR?-source=J/MNRAS/437/3473

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• Glimpses of stellar surfaces. II. Origins of the photometric modulations and timing variations of KOI-1452
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• Some Findings from the Longitudinal Migration of Starspots