Duplicity in the solar neighbourhood. V - Spectroscopic orbit for the nearby double-lined solar-type star HR 8581

Details Duplicity in the solar neighbourhood. V - Spectroscopic orbit for the nearby double-lined solar-type star HR 8581 Duplicity in the solar neighbourhood. V - Spectroscopic orbit for the nearby double-lined solar-type star HR 8581

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...75..167d&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 75, no. 1, Oct. 1988, p. 167-171. SNSF-supported research.

Astronomy and Astrophysics

Astrophysics

6

Binary Stars, Radial Velocity, Solar Neighborhood, Stellar Motions, Interferometry, Mass Ratios, Speckle Patterns, Stellar Mass, Visible Spectrum

Scientific paper

The nearby solar-type star HR 8581 is found to be a double-lined spectroscopic binary with an orbital period of 632.5 days. The mass ratio of the two components is 0.55, with a blue magnitude difference of 2.5 mag, suggesting a model consisting of an F8V +K4V pair of stars. Speckle interferometric measurements are suggested to complete the determination of the elements and of the stellar masses.

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