HD 50896 - Blobs in a wind with a collapsed companion or rotating disk with central filaments

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169724· OSTI ID:5702400

Underhill, A B; Yang, S ^[1]

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1. British Columbia Univ., Vancouver (Canada) Victoria Univ. (Canada)

Twelve 40 A/mm blue-violet spectrograms of HD 50896 taken over 199 cycles in 1980 and 1982 were measured for radial velocity, and profiles of the major lines are presented. Binary motion about a collapsed companion in a period of 3.763 days is not demonstrated. It is argued that what is being seen is inflow from a disk in the case of the He lines and outflow in a wind in the case of the N IV and N V lines, with the shapes of the line profiles changing systematically in a period of 3.763 days. HD 50896 appears to be a single star which lies within a ringlike, rotating disk which is connected to the central star by a few ever-changing filaments which are supported by magnetic field lines. 29 refs.

• OSTI ID: 5702400
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 368; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ACCRETION DISKS
BINARY STARS
ELEMENT ABUNDANCE
EMISSION SPECTRA
MAIN SEQUENCE STARS
MOTION
NEUTRON STARS
RADIAL VELOCITY
ROTATION
SPECTRA
STAR ACCRETION
STAR EVOLUTION
STARS
STELLAR ACTIVITY
STELLAR WINDS
VELOCITY
WOLF-RAYET STARS