Radial Velocities of Six OB Stars

• Published in: Publications of the Astronomical Society of the Pacific Vol. 119; no. 857; pp. 742 - 746
• Main Authors: Boyajian, T. S., Gies, D. R., Baines, E. K., Barai, P., Grundstrom, E. D., McSwain, M. V., Parks, J. R., Riddle, R. L., Ryle, W. T., Wingert, D. W.
• Format: Journal Article
• Language: English
• Published: Chicago, IL The University of Chicago Press 01-07-2007; University of Chicago Press
• Subjects: Absorption spectra; Astronomy; Be stars; Earth, ocean, space; Emission spectra; Exact sciences and technology; Line spectra; Radial velocity; Rotational spectra; Spectroscopic binary stars; Stars; Stellar spectra; Stellar spectral lines; OB stars; Radial velocity
• ISSN: 0004-6280; 1538-3873
• DOI: 10.1086/520707

We present new results from a radial velocity study of six bright OB stars with little or no prior measurements. One of these, HD 45314, may be a long‐period binary, but the velocity variations of this Be star may be related to changes in its circumstellar disk. Significant velocity variations were also found for HD 60848 (possibly related to nonradial pulsations) and HD 61827 (related to wind variations). The other three targets, HD 46150, HD 54879, and HD 206183, are constant‐velocity objects, but we note that HD 54879 has Hα emission that may originate from a binary companion. We illustrate the average red spectrum of each target.