Photometry of the POST T Tauri star HD 36705.
Abstract
Two series of observations in the uvby and UBVRI systems separated by 3 months are presented. The short rotational period of 0.514 days is confirmed. The light curves show high level of variability on time scales ranging from a few days to months. The mean values of the (b-y) or (B-V) colors are consistent with a K1 spectrum but other indices suggest a flatter spectral distribution than in normal stars. Variations in photometric indices correlate poorly with those in brightness suggesting that in addition to spots the chromospheric sources might contribute significantly to the observed variability. Young age inferred from the short period and the presence of lithium in the atmosphere indicate a possible similarity to the fast rotating K-type stars in the Pleiades cluster.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- May 1983
- Bibcode:
- 1983A&AS...52..281R
- Keywords:
-
- Late Stars;
- Stellar Rotation;
- Stellar Spectrophotometry;
- T Tauri Stars;
- K Stars;
- Light Curve;
- Pleiades Cluster;
- Stellar Atmospheres;
- Stellar Color;
- Ubv Spectra;
- Astronomy