Other
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apjs...86..255r&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 86, no. 1, p. 255-291.
Other
55
Balmer Series, Binary Stars, Gas Streams, Stellar Envelopes, Stellar Spectra, Stellar Temperature, Accretion Disks, H Alpha Line, H Ii Regions, Stellar Orbits
Scientific paper
The kinematics and the spatial distribution of the circumstellar material the short-period Algol-type system Beta Persei are studied by analyzing its H-alpha line profile. Photographic spectra are used which over the entire orbit of the Algol binary, with a resolution of about 0.02 in phase. This single data set is more comprehensive than any other spectroscopic observations of Beta Persei in the literature. The observations can be used to provide 2D information about the circumstellar material. From the observations, it is found that the H-alpha difference profiles of Algol arise from three main circumstellar regions: (1) a transient high-density low-mass localized region close to the photosphere of the primary but high above the orbital plane; (2) a transient rotating accretion disk which surrounds the primary; and (3) a high-velocity disk component surrounding the primary.
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