UBV(RI)c photometry for CAII emission stars. I. Observations at Sutherland.
Abstract
Extensive photometry on the UBV(RI)c system is given for 55 stars with strong Ca II H and K emission. The UBV observations were made relative to the standard stars of Lloyd Evans, Koen & Hultzer (1983) while the (RI)c observations were made relative to E-region standards over greater angular distances. The data are plotted in phase diagrams.
- Publication:
-
South African Astronomical Observatory Circular
- Pub Date:
- 1987
- Bibcode:
- 1987SAAOC..11...21L
- Keywords:
-
- Calcium;
- Emission Spectra;
- H Lines;
- K Lines;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Variable Stars;
- Light Curve;
- Southern Sky;
- Stellar Rotation;
- Tables (Data);
- Astronomy