OGLE-II high proper motion stars towards the Galactic Centre
Abstract
The photometry data base of the second phase of the OGLE microlensing experiment, OGLE-II, is a rich source of information about the kinematics and structure of the Galaxy. In this work, we use the OGLE-II proper motion catalogue to identify candidate stars which have high proper motions. 521 stars with proper motion μ > 50masyr-1 in the OGLE-II proper motion catalogue were cross-identified with stars in the MACHO high proper motion catalogue, and the DEep Near-Infrared Survey and Two-Micron All-Sky Survey infrared photometry catalogues. Photometric distances were computed for stars with colours consistent with G/K- and M-type stars. Six stars were newly identified as possible nearby (<50 pc) M dwarfs.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 2008
- DOI:
- arXiv:
- arXiv:0712.3012
- Bibcode:
- 2008MNRAS.385..905R
- Keywords:
-
- stars: distances;
- stars: statistics;
- solar neighbourhood;
- Astrophysics
- E-Print:
- 7 figures and 4 tables, MNRAS, accepted