H-alpha and H-beta photoelectric photometry of gamma Cassiopeiae

Details H-alpha and H-beta photoelectric photometry of gamma Cassiopeiae H-alpha and H-beta photoelectric photometry of gamma Cassiopeiae

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasp...88...10b&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 88, Feb. 1976, p. 10-12.

Astronomy and Astrophysics

Astronomy

9

B Stars, H Alpha Line, H Beta Line, Stellar Spectrophotometry, Variable Stars, Balmer Series, Electrophotometry, Optical Filters

Scientific paper

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.

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