Journal article
THE ORBIT OF THE CLASSICAL CEPHEID U AQUILAE.
Abstract
A total of 62 new radial-velocity observations of the classical Cepheid U Aql have been obtained during the interval 1969 - 86. The authors present the first determination of a spectroscopic binary orbit for this star. The orbital elements derived from both new and published velocities are given. IUE observations reported by Böhm-Vitense and Proffitt (1985) indicate the presence of an early-type main-sequence companion. The orbital elements …
Authors
Welch DL; Evans NR; Lyons RW; Harris HC; Barnes TG; Slovak MH; Moffett TJ
Journal
Publications of the Astronomical Society of the Pacific, Vol. 99, No. 617, pp. 610–616
Publisher
IOP Publishing
Publication Date
July 1987
DOI
10.1086/132022
ISSN
1538-3873