Astronomy and Astrophysics – Astronomy
Scientific paper
May 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95..311p&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 95, May 1983, p. 311-318.
Astronomy and Astrophysics
Astronomy
20
B Stars, Binary Stars, Mass Flow, Orbital Mechanics, Stellar Envelopes, Stellar Models, Balmer Series, Photosphere, Radial Velocity, Stellar Mass Accretion, Stellar Mass Ejection
Scientific paper
The discovery of an unusual, periodic, two-component shell phase of short duration in the 'classical' Be star HR2142 (HD41335, MWC133) offered convincing evidence that this object is a mass-transfer binary system. A model based solely on the phase-dependent behavior of the hydrogen shell lines in this 80(d).860 binary was developed by Peters and Polidan (1973) and by Peters (1976). The present investigation is concerned with a refinement to the earlier model, taking into account the utilization of an orbital solution obtained from measurements of the wings of the broad photospheric features observed in the rapidly rotating primary. Velocities and equivalent widths from the sharp 'shell' lines, presumably formed in or near the gas stream, provide additional information on the mass flow in the Balmer-line-formation region.
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