Radial-velocity curves for the classical Cepheids T Vul, TT AQL, and Y OPH

Details Radial-velocity curves for the classical Cepheids T Vul, TT AQL, and Y OPH Radial-velocity curves for the classical Cepheids T Vul, TT AQL, and Y OPH

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92..436e&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, Aug. 1986, p. 436-440. NSERC-supported research.

Astronomy and Astrophysics

Astronomy

21

Binary Stars, Cepheid Variables, Radial Velocity, Stellar Spectrophotometry, Ultraviolet Spectra, Velocity Distribution, Iue, Orbital Elements

Scientific paper

Radial-velocity curves for three classical Cepheids, T Vul, Y Oph, and
TT Aql, have been obtained. Mean values of the systemic velocity of Y
Oph are in marginally better agreement with a constant value than with
the orbit suggested by Abt and Levy. IUE spectra show no sign of a
main-sequence companion B8 or earlier.

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