Eclipsing binaries as a test for synthetic photometry
Abstract
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.
- Publication:
-
Convection in Astrophysics
- Pub Date:
- May 2007
- DOI:
- 10.1017/S1743921307000373
- Bibcode:
- 2007IAUS..239..169H
- Keywords:
-
- Stars: atmospheres;
- techniques: photometric;
- binaries: eclipsing