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[112.27] The Optical Gravitational Lensing Experiment Catalog of stellar proper motions in the OGLE-II Galactic bulge fields

T. Sumi, X. Wu (Princeton University Observatory), A. Udalski, M. Szymanski, M. Kubiak, G. Pietrzynski, I. Soszynski (Warsaw University Observatory), P. Wozniak (Los Alamos National Laboratory), K. Zebrun, O. Szewczyk, L. Wyrzykowski (Warsaw University Observatory)

We present proper motion (\mu) catalogue of 5,078,188 stars in 49 Optical Gravitational Lensing Experiment II (OGLE-II) Galactic bulge fields, with the total area close to 11 square degrees. The proper motion measurements are based on 138 - 555 I-band images taken during four observing seasons: 1997-2000. The catalogue stars are in the magnitude range 11 < I < 18 mag. In particular, the catalogue includes Red Clump Giants (RCGs) and Red Giants in the Galactic Bulge, and main sequence stars in the Galactic disc. The proper motions up to \mu = 500 mas\,yr ^-1 were measured with the mean accuracy of 0.8 ~3.5 mas\,yr^-1, depending on the brightness of a star. This catalogue may be useful for studying the kinematic of stars in the Galactic Bulge and the Galactic disk with Extinction maps in these fields which are construncted by using two-band photometry of RCGs.

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.