2003/05/31 by T. Sumi, Xue-Bing Wu, X. Wu +15 · 1 citation
Engineering · Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomical Observations and Instrumentation #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2004.07457.x
published as Mon.Not.Roy.Astron.Soc. 348 (2004) 1439 · 13 pages, 16 figures, MNRAS in press
arxiv created 2003/11/28 · openalex publication_date 2004/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We present a proper-motion (μ) catalogue of 5 080 236 stars in 49 Optical Gravitational Lensing Experiment II (OGLE-II) Galactic bulge (GB) fields, covering a range of −11° < l < 11° and −6° < b < 3°, the total area close to 11 deg2. 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 and red giants in the GB, and main-sequence stars in the Galactic disc. The proper motions up to μ= 500 mas yr−1 were measured with a 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 kinematics of stars in the GB and the Galactic disc.