AAS 199th meeting, Washington, DC, January 2002
Session 6. Binary Stars
Display, Monday, January 7, 2002, 9:20am-6:30pm, Exhibit Hall

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[6.05] Characteristics of the Population of Spectroscopic Binaries Found in the Carney-Latham Proper-Motion Survey

D.W. Latham (CfA), T. Mazeh (Tel Aviv), B.W. Carney (UNC), R.P. Stefanik (CfA), J.B. Laird (Bowling Green), G. Torres (CfA), D. Goldberg (Tel Aviv), R.J. Davis (CfA), J.A. Morse (CASA)

We have monitored the radial velocities of 1412 stars selected for high proper motion, over time spans ranging up to 20 years. We have derived orbital solutions for 167 single-lined binaries and 34 double-lined systems. The frequency and orbital characteristics of the binaries in the halo and thick disk of the Galaxy closely resemble those of the thin disk. We summarize the characteristics of these binaries, such as the distribution of periods and eccentricity.

We thank the National Science Foundation for support at UNC and BGSU.

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