activity
20132025
most citedNo large population of unbound or wide-orbit Jupiter-mass planets

336 citations · 4.2k across the 111 of their papers we have counts for

collaborators
Showing 2022Show all

7 papers · 1 filter

astro-ph.SR2022★ 54 cited

Systematic errors as a source of mass discrepancy in black hole microlensing event OGLE-2011-BLG-0462

Przemek Mroz, Andrzej Udalski, Andrew Gould

Two independent groups reported the discovery of an isolated dark stellar remnant in the microlensing event OGLE-2011-BLG-0462 based on photometric ground-based observations couple…

astro-ph.EP2022★ 38 cited

Systematic KMTNet Planetary Anomaly Search. VI. Complete Sample of 2018 Sub-Prime-Field Planets

Youn Kil Jung, Weicheng Zang, Cheongho Han +29

We complete the analysis of all 2018 sub-prime-field microlensing planets identified by the KMTNet AnomalyFinder. Among the 9 previously unpublished events with clear planetary sol…

astro-ph.EP2022★ 5 cited

MOA-2019-BLG-008Lb: a new microlensing detection of an object at the planet/brown dwarf boundary

E. Bachelet, Y. Tsapras, Andrew Gould +68

We report on the observations, analysis and interpretation of the microlensing event MOA-2019- BLG-008. The observed anomaly in the photometric light curve is best described throug…

astro-ph.EP2022★ 43 cited

Systematic KMTNet Planetary Anomaly Search. IV. Complete Sample of 2019 Prime-Field

Weicheng Zang, Hongjing Yang, Cheongho Han +33

We report the complete statistical planetary sample from the prime fields () of the 2019 Korea Microlensing Telescope Network (KMTNet) microlensing survey. W…

astro-ph.GA2022★ 140 cited

An isolated mass gap black hole or neutron star detected with astrometric microlensing

Casey Y. Lam, Jessica R. Lu, Andrzej Udalski +42

We present the analysis of five black hole candidates identified from gravitational microlensing surveys. Hubble Space Telescope astrometric data and densely sampled lightcurves fr…

astro-ph.IM2022★ 65 cited

Impact of the SpaceX Starlink Satellites on the Zwicky Transient Facility Survey Observations

Przemek Mroz, Angel Otarola, Thomas A. Prince +6

There is a growing concern about an impact of low-Earth-orbit (LEO) satellite constellations on ground-based astronomical observations, in particular, on wide-field surveys in the…