The orbit of the double-line spectroscopic binary system HR 7112.

Details The orbit of the double-line spectroscopic binary system HR 7112. The orbit of the double-line spectroscopic binary system HR 7112.

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995japa...16...37a&link_type=abstract

Journal of Astrophysics and Astronomy, Vol. 16, No. 1, p. 37 - 43

Astronomy and Astrophysics

Astrophysics

1

Spectroscopic Binaries: Orbits

Scientific paper

Presents velocity observations, obtained with the E.W. Fick Observatory 0.6 m telescope, of the 7m K1 star HR 7112. The authors' observations show that HR 7112 is a double-line spectroscopic binary system composed of almost equal mass stars with a period of 215.6 days. The orbit has an eccentricity e = 0.142 and the stars orbit each other with a mean semi-major axis distance of approximately 0.4 sin i AU. The masses of the stars are consistent with the classification as giant stars. Tidal effects are known to circularise the orbits of giant stars and this process is apparently underway in this system.

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