Spectroscopy of the unique degenerate binary star LS I+ 61 303.

JB Hutchings, D Crampton - … of the Astronomical Society of the …, 1981 - iopscience.iop.org
JB Hutchings, D Crampton
Publications of the Astronomical Society of the Pacific, 1981iopscience.iop.org
IUE ultraviolet, and ground-based spectroscopic data are presented and discussed. The
primary is a rapidly rotating BO main-sequence star, with a stable shell. The radial velocities
indicate binary motion in a 26.5-day orbit (in agreement with the radio flaring period), with a
secondary of mass 1.1-1.5'.!)(©. The broad Bahner emission appears to arise principally
near the primary, and the line of sight is close to equatorial. These considerations bear on
models involving X and y radiation from the system.
IUE ultraviolet, and ground-based spectroscopic data are presented and discussed. The primary is a rapidly rotating BO main-sequence star, with a stable shell. The radial velocities indicate binary motion in a 26.5-day orbit (in agreement with the radio flaring period), with a secondary of mass 1.1-1.5'.!)(©. The broad Bahner emission appears to arise principally near the primary, and the line of sight is close to equatorial. These considerations bear on models involving X and y radiation from the system.
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