Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-10-29
Astrophys.J.Suppl.152:103-111,2004
Astronomy and Astrophysics
Astrophysics
20 Pages, Submitted to ApJ Supplements, Catalog available at http://www.astronomy.ohio-state.edu/~gould/SDSS-USNOB/cat.dat.gz
Scientific paper
10.1086/382529
We present a catalog of 345,000 stars with proper motions \mu > 20 mas/yr and magnitudes r' <20, drawn from the intersection of the SDSS Data Release One and USNO-B. We first use SDSS quasars to correct the proper motions in each of the two source catalogs, finding that these corrections for systematics are comparable to the statistical errors. The combined proper motions have errors of \sigma_\mu=4.0 mas/yr, significantly better than any previous catalog at these magnitudes. While cross-correlating SDSS and USNO-B removes the vast majority of the very large number of spurious proper-motion stars in each, some contamination remains, especially at faint magnitudes, r' > 19.5, and high proper motions. We present a diagrammatic method to estimate the level of contamination in selected subsets of the catalog, which should be useful for choosing appropriate selection criteria for various applications.
Gould Andrew
Kollmeier Juna A.
No associations
LandOfFree
Proper Motion Catalog From SDSS \intersect USNO-B does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Proper Motion Catalog From SDSS \intersect USNO-B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proper Motion Catalog From SDSS \intersect USNO-B will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-249879