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Spectroscopic Observations of Visual Double Stars

Published online by Cambridge University Press:  25 July 2018

Frederick R. West
Frederick R. West*
Affiliation:
Geosciences Dept., State Univ. College at Buffalo, Buffalo, N.Y., U.S.A.

Extract

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There are certain visual double stars which, when close to a node of their relative orbit, should have enough radial velocity difference (10-20 km/s) that the spectra of the two component stars will appear resolved on high-dispersion spectrograms (5 Å/mm or less) obtainable by use of modern coude and solar spectrographs on bright stars. Both star images are then recorded simultaneously on the spectrograph slit, so that two stellar components will appear on each spectrogram.

Type
Third Session
Information
International Astronomical Union Colloquium , Volume 5: Coordination of Observing Techniques of Visual Double Stars , April 1971 , pp. 109 - 111
Copyright
Copyright © 1971

References

Abt, H. A. and Kallarakal, V. V.: 1963, Astrophys. J. 138, 140.Google Scholar
Aitken, R. G.: 1964, The Binary Stars, 2nd rev. ed., Dover Publ., New York, pp. 224–225.Google Scholar
Dworetsky, M.: 1967, Astron. J. 72, 297.Google Scholar
West, F. R.: 1966, Astron. J. 71, 186.CrossRefGoogle Scholar
Worley, C. E.: 1963, A Catalog of Visual Binary Orbits, Publ. U.S. Naval Obs., 2nd series, Vol. 18, pt. III.Google Scholar