The photometric variability of solar-type stars. V. The standard stars10 and 11 Leonis Minoris.
Abstract
Light curves in Strömgren b and y for the 1985 season are presented for the uvby standard stars 10 LMi (HD 82635) and 11 LMi (HD 82885). The period of 10 LMi is 40.4 days, with an amplitude of 0.012 magnitude in y. The period of 11 LMi is 18.0 days, with an amplitude of 0.033 magnitude in y. The mechanism of the variability is interpreted as rotational modulation due to active regions on the stars. Observations of 11 LMi as a standard suggest the star was only weakly variable or constant during the interval from 1972 to 1984.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- March 1986
- DOI:
- 10.1086/131763
- Bibcode:
- 1986PASP...98..338S
- Keywords:
-
- Light Curve;
- Reference Stars;
- Stellar Activity;
- Stellar Rotation;
- Stellar Spectrophotometry;
- Variable Stars;
- Chromosphere;
- Stellar Magnitude;
- Astronomy