Abstract
view Abstract Citations (49) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectrophotometric variability in the Be star gamma Cassiopeiae: simultaneous ultraviolet and Halpha observations. Slettebak, A. ; Snow, T. P., Jr. Abstract Simultaneous scans of the ultraviolet Si IV and Mg II resonance doublets in the spectrum of Gamma Cas with the Copernicus satellite during 64 continuous hours of observation, and H-alpha scans from a ground station, are described. No evidence is found for a rotation period of Gamma Cas, but narrow emission components in both ultraviolet doublets are reported along with a sudden emission increase on January 29.1, 1977 UT which appeared to be present in both H-alpha and the ultraviolet lines. Publication: The Astrophysical Journal Pub Date: September 1978 DOI: 10.1086/182775 Bibcode: 1978ApJ...224L.127S Keywords: Early Stars; H Alpha Line; Stellar Spectrophotometry; Ultraviolet Spectra; Variable Stars; B Stars; Emission Spectra; Oao 3; Red Shift; Stellar Envelopes; Stellar Rotation; X Ray Sources; Astronomy; Be Stars:Line Profiles; Be Stars:UV Spectra full text sources ADS | data products SIMBAD (1)
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