4 papers
Observability of Isolated Stellar-mass Black Holes
Lena Murchikova, Kailash Sahu
Stellar-mass black holes (BHs) represent the natural end states of massive stars. It is estimated that stellar-mass BHs are present in the Milky Way galaxy, a significant fr…
Detection Prospects of Electromagnetic Signatures from OGLE-2011-BLG-0462
Shigeo S. Kimura, Lena Murchikova, Kailash C. Sahu
Stellar-mass isolated black holes (IsoBHs) wandering in interstellar medium (ISM) are expected to be abundant in our Galaxy. Recently, an IsoBH, OGLE-2011-BLG-0462, was unambiguous…
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…
Testing Cluster Membership of Planetary Nebulae with High-Precision Proper Motions. II. HST Observations of PHR J1315-6555 in the Open Cluster AL 1 (ESO 96-SC04)
Andrea Bellini, Howard E. Bond, Kailash C. Sahu
Planetary nebulae (PNe) shown to be members of star clusters provide information on their properties and evolutionary histories that cannot be determined for PNe in the field, in p…