| Stellar Proper Motions in the Galactic Bulge from deep HST ACS/WFC Photometry (2008) | |||||||||
Abstract | |||||||||
| We present stellar proper motions in the Galactic bulge from the Sagittarius Window Eclipsing Extrasolar Search (SWEEPS) project using ACS/WFC on HST. Proper motions are extracted for more than 180,000 objects, with >81,000 measured to accuracy better than 0.3 mas/yr in both coordinates. We report several results based on these measurements: 1. Kinematic separation of bulge from disk allows a sample of >15,000 bulge objects to be extracted based on >6-sigma detections of proper motion, with . Comment: 71 pages, 30 figures, ApJ Accepted | |||||||||
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