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20192026
most citedAn isolated mass gap black hole or neutron star detected with astrometric microlensing

140 citations · 629 across the 77 of their papers we have counts for

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6 papers · 1 filter

astro-ph.GA2026

Testing KMTNet--PRIME Optical--Near-Infrared Source-Color Constraints in KMT-2024-BLG-0211 and KMT-2024-BLG-1522

Kansuke Nunota, Jennifer C. Yee, Takahiro Sumi +37

We present analyses of two 2024 microlensing events, KMT-2024-BLG-0211 and KMT-2024-BLG-1522, jointly observed by KMTNet in the optical and PRIME in the near-infrared. For KMT-2024…

astro-ph.GA2026

An HST Wide Field Survey of the Galactic Bulge: Overview, Strategy, and First Results

Sean K. Terry, Jay Anderson, Charles A. Beichman +13

We present an HST imaging survey of a 1.1 sq. degree sky area toward the Milky Way Galactic Bulge. This field significantly overlaps with the upcoming Nancy Grace Roman Galactic Bu…

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…