Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...449..909m&link_type=abstract
Astrophysical Journal v.449, p.909
Astronomy and Astrophysics
Astronomy
14
Stars: Binaries: Spectroscopic, Stars: Individual Henry Draper Number: Hd 2909, Stars: Rotation
Scientific paper
TODCOR is a new two-dimensional correlation technique for analyzing observed spectra of double-lined spectroscopic binaries in order to extract the radial velocities of both components. In this paper we apply TODCOR for the first time to a real system the highly eccentric binary HD 2909. TODCOR has derived successfully the velocities of the two components, even at phases when the velocity difference between the primary and the secondary was very small. We present an orbital solution which shows that HD 2909 is the second most eccentric spectroscopic binary known, with an eccentricity of 0.949±0.002.
We discuss the tidal history of HD 2909 and show that neither the semimajor axis and the eccentricity of the orbit nor the stellar rotation have been changed by tidal interaction throughout the system lifetime.
Carney Bruce W.
Goldberg Dorit
Latham David W.
Mazeh Tsevi
Stefanik Robert P.
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