Radial-velocity orbit of HR 2081

Details Radial-velocity orbit of HR 2081 Radial-velocity orbit of HR 2081

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..824b&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Dec. 1979-Jan. 1980, p. 824-826.

Astronomy and Astrophysics

Astronomy

4

Binary Stars, Giant Stars, Late Stars, Radial Velocity, Stellar Rotation, Stellar Spectrophotometry, Line Spectra, Orbits

Scientific paper

Radial-velocity observations of HR 2081 made with photoelectric spectrometers are given, as well as its orbital elements. The orbit of HR 2081, a double-lined spectroscopic binary, is determined, showing no significant eccentricity. Photoelectric velocity traces show two dips often well separated, with a small but perceptible difference in depth. In addition, the minimum masses of both components of HR 2081 correspond to spectral type A1 V on the main sequence, and thus it appears to be a youthful system.

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