The Study of Central Regions of omega Centauri: I. Kinematics and Binary Search

Details The Study of Central Regions of omega Centauri: I. Kinematics and Binary Search The Study of Central Regions of omega Centauri: I. Kinematics and Binary Search

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19915614x&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #156.14; Bulletin of the American Astronomical Society, Vol. 34, p.565

Astronomy and Astrophysics

Astronomy

Scientific paper

We present 9937 radial velocities for 4916 giants in the magnitude range 10.7 < V < 17.1 within the central 3.5' of omega Cen measured at three epochs over time-span of 4 years, using the Rutgers Imaging Fabry-Perot Spectrometer on the CTIO 1.5-meter telescope. The median internal uncertainty of the velocity measurements is 1.95 km/s. There are 2969 stars with at least two velocity measurements. We use these data to study the kinematics and search for binary stars at the cluster center.

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