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We present stellar proper motions in the Galactic bulge from the SagittariusWindow Eclipsing Extrasolar Search (SWEEPS) project using ACS/WFC on HST.Proper motions are extracted for more than 180,000 objects, with >81,000measured to accuracy better than 0.3 mas/yr in both coordinates. We reportseveral results based on these measurements: 1. Kinematic separation of bulgefrom disk allows a sample of >15,000 bulge objects to be extracted based on>6-sigma detections of proper motion, with <0.2% contamination from the disk.This includes the first detection of a candidate bulge Blue Stragglerpopulation. 2. Armed with a photometric distance modulus on a star by starbasis, and using the large number of stars with high-quality proper motionmeasurements to overcome intrinsic scatter, we dissect the kinematic propertiesof the bulge as a function of distance along the line of sight. This allows usto extract the stellar circular speed curve from proper motions alone, which wecompare with the circular speed curve obtained from radial velocities. 3. Wetrace the variation of the {l,b} velocity ellipse as a function of depth. 4.Finally, we use the density-weighted {l,b} proper motion ellipse produced fromthe tracer stars to assess the kinematic membership of the sixteen transitingplanet candidates discovered in the Sagittarius Window; the kinematicdistribution of the planet candidates is consistent with that of the disk andbulge stellar populations.

Stellar Proper Motions in the Galactic Bulge from deep HST ACS/WFC Photometry