Halpha and Hbeta photoelectric photometry of gamma Cassiopeiae.
Abstract
Photoelectric observations of gamma Cas (B0 IVe) were made using two pairs of wide- and narrow-band interference filters centered near the rest wavelengths of the hydrogen Balmer alpha and beta lines. H-alpha and H-beta indices were obtained on 19 nights from February 1972 to February 1975. Variations in the H-alpha and H-beta indices were found with a range of 0.18 and 0.10 min, respectively.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- February 1976
- DOI:
- 10.1086/129887
- Bibcode:
- 1976PASP...88...10B
- Keywords:
-
- B Stars;
- H Alpha Line;
- H Beta Line;
- Stellar Spectrophotometry;
- Variable Stars;
- Balmer Series;
- Electrophotometry;
- Optical Filters;
- Astronomy