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19942026
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations · 9.7k across the 249 of their papers we have counts for

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Showing astro-ph.GAShow all

6 papers · 1 filter

astro-ph.GA2024

The Microlensing Event Rate and Optical Depth from MOA-II 9 year Survey toward the Galactic Bulge

Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto +23

We present measurements of the microlensing optical depth and event rate toward the Galactic bulge using the dataset from the 2006--2014 MOA-II survey, which covers 22 bulge fields…

astro-ph.GA2024

Analysis of the full Spitzer microlensing sample I: Dark remnant candidates and Gaia predictions

Krzysztof A. Rybicki, Yossi Shvartzvald, Jennifer C. Yee +70

In the pursuit of understanding the population of stellar remnants within the Milky Way, we analyze the sample of microlensing events observed by the Spitzer Space Teles…

astro-ph.GA2024★ 9 cited

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.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.GA2013★ 92 cited

The Microlensing Event Rate and Optical Depth Toward the Galactic Bulge from MOA-II

T. Sumi, D. P. Bennett, I. A. Bond +19

We present measurements of the microlensing optical depth and event rate toward the Galactic Bulge based on two years of the MOA-II survey. This sample contains ~1000 microlensing…

astro-ph.GA2009★ 160 cited

The Extreme Microlensing Event OGLE-2007-BLG-224: Terrestrial Parallax Observation of a Thick-Disk Brown Dwarf

A. Gould, A. Udalski, B. Monard +10

Parallax is the most fundamental technique to measure distances to astronomical objects. Although terrestrial parallax was pioneered over 2000 years ago by Hipparchus (ca. 140 BCE)…