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New Results of Moscow Cepheid Radial Velocity Programme

Published online by Cambridge University Press:  12 April 2016

N. A. Gorynya ,
N. N. Samus ,
M. E. Sachkov ,
S. V. Antipin  and
A. S. Rastorgouev
N. A. Gorynya
Affiliation:
Institute of Astronomy, 48 Pyatnitskaya Str., Moscow 109017, Russia
N. N. Samus
Affiliation:
Institute of Astronomy, 48 Pyatnitskaya Str., Moscow 109017, Russia
M. E. Sachkov
Affiliation:
Institute of Astronomy, 48 Pyatnitskaya Str., Moscow 109017, Russia
S. V. Antipin
Affiliation:
Sternberg Astronomical Institute, 13 Universitetsky Ave., Moscow 119899, Russia
A. S. Rastorgouev
Affiliation:
Sternberg Astronomical Institute, 13 Universitetsky Ave., Moscow 119899, Russia

Abstract

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A sequence similar to Hertzsprung progression was revealed for Cepheid radial-velocity curves. We separated two pulsation modes for six double-mode Cepheids and determined radii for five of them. Several new spectroscopic-binary Cepheids were discovered; we present new preliminary orbital periods for V496 Aql, VY Cyg, and V1334 Cyg, in a combined table of our results on Cepheid binarity.

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 242 - 243
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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