Variation of the radial velocity of Epsilon Cygni A

Details Variation of the radial velocity of Epsilon Cygni A Variation of the radial velocity of Epsilon Cygni A

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104.1173m&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 682, p. 1173-1176.

Astronomy and Astrophysics

Astronomy

4

Companion Stars, Periodic Variations, Radial Velocity, Stellar Mass, Stellar Motions, Circular Orbits, Stellar Orbits

Scientific paper

The paper reports a series of 217 measurements of the radial velocity of Epsilon Cygni A made between May 16, 1987 and May 17, 1991 with an uncertainty per observation of +/- 12 m/s. The results indicate a sustained drift of -60 m/s yr. Lower limits on the companion's mass are presented as functions of period and primary mass. The companion is probably more massive than a planet.

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