activity
19982022
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations · 5.2k across the 60 of their papers we have counts for

collaborators

60 papers

astro-ph.SR2022

An Isolated Stellar-Mass Black Hole Detected Through Astrometric Microlensing

Kailash C. Sahu, Jay Anderson, Stefano Casertano +90

We report the first unambiguous detection and mass measurement of an isolated stellar-mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise astrometry…

astro-ph.EP2017★ 25 cited

The First Planetary Microlensing Event with Two Microlensed Source Stars

D. P. Bennett, A. Udalski, C. Han +64

We present the analysis of microlensing event MOA-2010-BLG-117, and show that the light curve can only be explained by the gravitational lensing of a binary source star system by a…

astro-ph.EP2016★ 119 cited

The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c

D. P. Bennett, S. H. Rhie, A. Udalski +79

We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of $q \a…

astro-ph.EP2015★ 12 cited

Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446

E. Bachelet, D. M. Bramich, C. Han +98

For all exoplanet candidates, the reliability of a claimed detection needs to be assessed through a careful study of systematic errors in the data to minimize the false positives r…

astro-ph.EP2015★ 50 cited

MOA-2007-BLG-197: Exploring the brown dwarf desert

C. Ranc, A. Cassan, M. D. Albrow +48

We present the analysis of MOA-2007-BLG-197Lb, the first brown dwarf companion to a Sun-like star detected through gravitational microlensing. The event was alerted and followed-up…

astro-ph.EP2015★ 5 cited

Reanalyses of Anomalous Gravitational Microlensing Events in the OGLE-III Early Warning System Database with Combined Data

J. Jeong, H. Park, C. Han +95

We reanalyze microlensing events in the published list of anomalous events that were observed from the OGLE lensing survey conducted during 2004-2008 period. In order to check the…