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19982026
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations · 9.8k across the 279 of their papers we have counts for

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Showing 2020Show all

12 papers · 1 filter

astro-ph.EP2020

OGLE-2017-BLG-1049: Another giant planet microlensing event

Yun Hak Kim, Sun-Ju Chung, A. Udalski +55

We report a giant exoplanet discovery in the microlensing event OGLE-2017-BLG-1049, which is a planet-host star mass ratio of and has a caustic crossin…

astro-ph.EP2020★ 70 cited

A terrestrial-mass rogue planet candidate detected in the shortest-timescale microlensing event

P. Mroz, R. Poleski, A. Gould +27

Some low-mass planets are expected to be ejected from their parent planetary systems during early stages of planetary system formation. According to planet-formation theories, such…

astro-ph.EP2020★ 41 cited

KMT-2017-BLG-2820 and the Nature of the Free-Floating Planet Population

Yoon-Hyun Ryu, Przemek Mróz, Andrew Gould +28

We report a new free-floating planet (FFP) candidate, KMT-2017-BLG-2820, with Einstein radius $θ_\e\simeq 6\,\muas$, lens-source relative proper motion $μ_\rel \simeq 8\,\masyr$, a…

astro-ph.EP2020★ 7 cited

OGLE-2018-BLG-0799Lb: a Planet with Spitzer Parallax

Weicheng Zang, Yossi Shvartzvald, Andrzej Udalski +73

We report the discovery and analysis of a planet in the microlensing event OGLE-2018-BLG-0799. The planetary signal was observed by several ground-based telescopes, and the planet-…

astro-ph.EP2020★ 13 cited

Four Microlensing Planets with Faint-source Stars Identified in the 2016 and 2017 Season Data

Cheongho Han, Andrzej Udalski, Doeon Kim +32

Microlensing planets occurring on faint source stars can escape detection due to their weak signals. Occasionally, detections of such planets are not reported due to the difficulty…

astro-ph.EP2020

KMT-2018-BLG-0748Lb: Sub-Saturn Microlensing Planet Orbiting an Ultracool Host

Cheongho Han, In-Gu Shin, Youn Kil Jung +18

We announce the discovery of a microlensing planetary system, in which a sub-Saturn planet is orbiting an ultracool dwarf host. We detect the planetary system by analyzing the shor…