Gamma Cassiopeiae - Spectroscopic variations and its association with the variable X-ray source MX0053 + 60

Details Gamma Cassiopeiae - Spectroscopic variations and its association with the variable X-ray source MX0053 + 60 Gamma Cassiopeiae - Spectroscopic variations and its association with the variable X-ray source MX0053 + 60

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasp...88..911c&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 88, Dec. 1976-Jan. 1977, p. 911-916. NSF-supported research.

Astronomy and Astrophysics

Astronomy

50

B Stars, Stellar Spectra, Variable Stars, X Ray Sources, Binary Stars, Early Stars, Radial Velocity

Scientific paper

Qualitative changes in the spectral appearance of Gamma Cas since 1941 are presented. Velocity variations are searched for to aid in the interpretation of the recently discovered X-ray flux. No evidence is found for velocity variations exceeding 20 km/s, and no periodicities in the range from 2.5 to 4000 days are detected. It is concluded that Gamma Cas is probably a single star, although the possible existence of a low-mass companion cannot be ruled out.

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