activity
20232026
most citedDiscovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

129 citations · 348 across the 19 of their papers we have counts for

collaborators
Showing astro-ph.EPShow all

7 papers · 1 filter

astro-ph.EP2026

KMT-2024-BLG-0816/OGLE-2024-BLG-0519 -- A Microlensing Event with Candidate Free-Floating Planet Lens and Blended Light

R. Poleski, Y. -H. Ryu, A. Udalski +27

We present the discovery of a free-floating planet microlensing event KMT-2024-BLG-0816. The event shows finite-source effect, significant blending light, and no microlensing signa…

astro-ph.EP2025★ 6 cited

A free-floating-planet microlensing event caused by a Saturn-mass object

Subo Dong, Zexuan Wu, Yoon-Hyun Ryu +39

A population of free-floating planets is known from gravitational microlensing surveys. None have a directly measured mass, owing to a degeneracy with the distance, but the populat…

astro-ph.EP2024★ 2 cited

OGLE-2015-BLG-1609Lb: Sub-jovian planet orbiting a low-mass stellar or brown dwarf host

M. J. Mróz, R. Poleski, A. Udalski +70

We present a comprehensive analysis of a planetary microlensing event OGLE-2015-BLG-1609. The planetary anomaly was detected by two survey telescopes, OGLE and MOA. Each of these s…

astro-ph.EP2024

A close binary lens revealed by the microlensing event Gaia20bof

E. Bachelet, P. Rota, V. Bozza +24

During the last 25 years, hundreds of binary stars and planets have been discovered towards the Galactic Bulge by microlensing surveys. Thanks to a new generation of large-sky surv…

astro-ph.EP2023

Candidates for Transiting Planets in OGLE-IV Galactic Bulge Fields

M. J. Mróz, P. Pietrukowicz, R. Poleski +13

We present results of a search for transiting exoplanets in 10-yr long photometry with thousands of epochs taken in the direction of the Galactic bulge. This photometry was collect…

astro-ph.EP2023★ 23 cited

Gaia Focused Product Release: Asteroid orbital solution. Properties and assessment

Gaia Collaboration, P. David, F. Mignard +2

Context. We report the exploitation of a sample of epoch astrometry for 157 000 asteroids, the same object in the Gaia Data Release 3, extended over the time coverage planned for t…

astro-ph.EP2023★ 1 cited

Gaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-Velocity Characterization

Zexuan Wu, Subo Dong, Tuan Yi +50

We report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensin…