On the spectroscopic binary 57 Cygni

Details On the spectroscopic binary 57 Cygni On the spectroscopic binary 57 Cygni

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189..551t&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 189, Nov. 1979, p. 551-561.

Astronomy and Astrophysics

Astronomy

1

B Stars, Binary Stars, Radial Velocity, Stellar Spectra, Absorption Spectra, Astronomical Photography, Spectrograms, Visual Observation

Scientific paper

Ovenden (1963) presented evidence for systematic radial-velocity anomalies in 57 Cygni, attributable to an anomalous reflection effect. An independent study is reported that has failed to confirm Ovenden's results. A plate-averaging technique was used to look for the weak high-excitation lines that showed the strongest effect. No convincing evidence was found for the existence of these lines.

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