papers

Publications (7)

astro-ph.GA2024

Dark lens candidates from Gaia Data Release 3

K. Kruszyńska, Ł. Wyrzykowski, K. A. Rybicki +48

Gravitational microlensing is a phenomenon that allows us to observe dark remnants of stellar evolution even if they no longer emit electromagnetic radiation. In particular, it can…

astro-ph.SR2023

Lens mass estimate in the Galactic disk extreme parallax microlensing event Gaia19dke

M. Maskoliūnas, Ł. Wyrzykowski, K. Howil +74

We present the results of our analysis of Gaia19dke, an extraordinary microlensing event in the Cygnus constellation that was first spotted by the {\gaia} satellite. This event fea…

astro-ph.SR2022

Lens parameters for Gaia18cbf -- a long gravitational microlensing event in the Galactic plane

Katarzyna Kruszyńska, Ł. Wyrzykowski, K. A. Rybicki +29

Context: The timescale of a microlensing event scales as a square root of a lens mass. Therefore, long-lasting events are important candidates for massive lenses, including black h…

astro-ph.EP2024

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…

astro-ph.GA2024

Uncovering the Invisible: A Study of Gaia18ajz, a Candidate Black Hole Revealed by Microlensing

K. Howil, Ł. Wyrzykowski, K. Kruszyńska +30

Identifying black holes is essential for comprehending the development of stars and uncovering novel principles of physics. Gravitational microlensing provides an exceptional oppor…

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.GA2025

Constraining Lens Masses in Moderately to Highly Magnified Microlensing Events from Gaia

U. Pylypenko, Ł. Wyrzykowski, P. J. Mikołajczyk +57

Microlensing events provide a unique way to detect and measure the masses of isolated, non-luminous objects, particularly dark stellar remnants. Under certain conditions, it is pos…