150 citations · 351 across the 5 of their papers we have counts for
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OGLE-2011-BLG-0462: An Isolated Stellar-Mass Black Hole Confirmed Using New HST Astrometry and Updated Photometry
Kailash C Sahu, Jay Anderson, Stefano Casertano +7
The long-duration Galactic-bulge microlensing event OGLE-2011-BLG-0462 produced relativistic astrometric deflections of the source star, which we measured using HST observations ta…
A search for black hole microlensing signatures in globular cluster NGC 6656 (M 22)
N. Kains, A. Calamida, K. C. Sahu +3
We report the results of a study aiming to detect signs of astrometric microlensing caused by an intermediate-mass black hole (IMBH) in the center of globular cluster M 22 (NGC 665…
A High-Precision Trigonometric Parallax to an Ancient Metal-Poor Globular Cluster
T. M. Brown, S. Casertano, J. Strader +5
Using the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST), we have obtained a direct trigonometric parallax for the nearest metal-poor globular cluster, NGC 6397. Al…