A Deep Proper-Motion Survey in Kapteyn Selected Areas. I. Survey Description and First Results for Stars in the Tidal Tail of Sagittarius and in the Monoceros Ring
Abstract
We describe a high-precision, deep (to V ~ 19-21), absolute proper-motion survey that samples ~50 lines of sight in the Kapteyn selected areas along declination zones -15°, 0°, and 15°. In many fields the astrometric baseline reaches nearly a century. We demonstrate that these data provide typical per star precisions between ~1 and 3 mas yr^(-1) to the above magnitude limits, with the absolute reference frame established by numerous extragalactic sources in each survey field. Combined with existing and ongoing photometric and radial velocity surveys in these fields, these astrometric data will enable, among other things, accurate detailed dynamical modeling of satellite interactions with our Galaxy. In this contribution we describe the astrometric part of our survey and show preliminary results along the trailing tail of the Sagittarius dwarf galaxy, and in the Monoceros Ring region.
Additional Information
© 2006 The American Astronomical Society. Received 2006 May 31; accepted 2006 August 3. We thank Stephen Levine from USNO, Flagstaff, for making available the POSS-I USNO scans. S. R. M. is grateful to the Carnegie Observatories and their former director Augustus Oemler for a Carnegie Visiting Associateship that made possible the collection of the du Pont plates used in this survey. The financial support from NSF grants AST 04-06884 and AST 04-07207 for this research is acknowledged. This publication makes uses of SDSS data products. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org.Attached Files
Published - CASaj06.pdf
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Additional details
- Eprint ID
- 22395
- Resolver ID
- CaltechAUTHORS:20110222-083608251
- AST 04-06884
- NSF
- AST 04-07207
- NSF
- Alfred P. Sloan Foundation
- Department of Energy (DOE)
- NASA
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
- Created
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2011-02-22Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field