The intrinsic colour calibration of Stromgren photometry for F-type stars.
Abstract
Several calibrations of Strömgren uvby-β photometry with respect to the intrinsic colour (b-y)0 exist for F-type stars. These calibrations are complementary, since they are valid for different ranges of heavy element abundance. A new comprehensive intrinsic colour calibration is presented. It is valid for all F0-G2 stars of luminosity classes III-V, except possibly the most extreme population II stars. The calibration is based on 1231 stars. The rms scatter around the calibration is 0m.009 (one star).
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- January 1988
- Bibcode:
- 1988A&A...189..173O
- Keywords:
-
- Astronomical Photometry;
- Calibrating;
- F Stars;
- Stellar Color;
- Stellar Spectrophotometry;
- Abundance;
- Interstellar Extinction;
- Astronomy