A binary model for the infrared source HD 101584

Details A binary model for the infrared source HD 101584 A binary model for the infrared source HD 101584

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206..122h&link_type=abstract

Astrophysical Journal, vol. 206, May 15, 1976, pt. 1, p. 122-127. NSF-supported research.

Astronomy and Astrophysics

Astrophysics

18

Binary Stars, Infrared Stars, Late Stars, Stellar Models, Stellar Spectrophotometry, Companion Stars, F Stars, H Lines, M Stars, Mass Ratios, Radial Velocity, Supergiant Stars, Ubv Spectra

Scientific paper

HD 101584 is a peculiar infrared source with the visual spectrum of a luminous F supergiant. Sufficient velocity data are available to yield a preliminary orbit with a period of about 3.5 years and a mass function of 0.25 solar mass. The excess infrared radiation is attributed to an unseen cool companion which has filled its Roche lobe and is losing mass. Some of this mass is visible (from the Ca II lines) as a gas stream flowing toward the warmer star, where it has formed a shell producing the F supergiant spectrum. Limits on the masses and radii of the two stars are derived.

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