235 citations · 4.7k across the 242 of their papers we have counts for
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OGLE-2017-BLG-0448Lb: A Low Mass-Ratio Wide-Orbit Microlensing Planet?
Ruocheng Zhai, Radosław Poleski, Weicheng Zang +38
The gravitational microlensing technique is most sensitive to planets in a Jupiter-like orbit and has detected more than 200 planets. However, only a few wide-orbit () micro…
OGLE-2019-BLG-1180Lb: Discovery of a Wide-orbit Jupiter-mass Planet around a Late-type Star
Sun-Ju Chung, Andrzej Udalski, Jennifer C. Yee +30
We report on the discovery and analysis of the planetary microlensing event OGLE-2019-BLG-1180 with a planet-to-star mass ratio . The event OGLE-2019-BLG-1180 has una…
KMT-2023-BLG-1431Lb: A New Microlensing Planet from a Subtle Signature
Aislyn Bell, Jiyuan Zhang, Youn Kil Jung +70
The current studies of microlensing planets are limited by small number statistics. Follow-up observations of high-magnification microlensing events can efficiently form a statisti…
UV to near-IR observations of the DART-Dimorphos collision
E. O. Ofek, D. Kushnir, D. Polishook +15
The impact of the Double Asteroid Redirection Test (DART) spacecraft with Dimorphos allows us to study asteroid collision physics, including momentum transfer, the ejecta propertie…
Systematic Reanalysis of KMTNet microlensing events, Paper I: Updates of the Photometry Pipeline and a New Planet Candidate
Hongjing Yang, Jennifer C. Yee, Kyu-Ha Hwang +52
In this work, we update and develop algorithms for KMTNet tender-love care (TLC) photometry in order to create an new, mostly automated, TLC pipeline. We then start a project to sy…
The Large Array Survey Telescope -- Pipeline. I. Basic image reduction and visit coaddition
E. O. Ofek, Y. Shvartzvald, A. Sharon +18
The Large Array Survey Telescope (LAST) is a wide-field telescope designed to explore the variable and transient sky with a high cadence and to be a test-bed for cost-effective tel…
KMT-2021-BLG-1547Lb: Giant microlensing planet detected through a signal deformed by source binarity
Cheongho Han, Weicheng Zang, Youn Kil Jung +52
We investigate the previous microlensing data collected by the KMTNet survey in search of anomalous events for which no precise interpretations of the anomalies have been suggested…
Systematic KMTNet Planetary Anomaly Search. X. Complete Sample of 2017 Prime-Field Planets
Yoon-Hyun Ryu, Andrzej Udalski, Jennifer C. Yee +38
We complete the analysis of planetary candidates found by the KMT AnomalyFinder for the 2017 prime fields that cover . We report 3 unambiguous planets: OGLE-2…
OGLE-2019-BLG-0825: Constraints on the Source System and Effect on Binary-lens Parameters arising from a Five Day Xallarap Effect in a Candidate Planetary Microlensing Event
Yuki K. Satoh, Naoki Koshimoto, David P. Bennett +86
We present an analysis of microlensing event OGLE-2019-BLG-0825. This event was identified as a planetary candidate by preliminary modeling. We find that significant residuals from…
Brown dwarf companions in binaries detected from the 2021 season high-cadence microlensing surveys
Cheongho Han, Youn Kil Jung, Ian A. Bond +45
As a part of the project aiming to build a homogeneous sample of binary-lens (2L1S) events containing brown-dwarf (BD) companions, we investigate the 2021 season microlensing data…
KMT-2022-BLG-0475Lb and KMT-2022-BLG-1480Lb: Microlensing ice giants detected via non-caustic-crossing channel
Cheongho Han, Chung-Uk Lee, Ian A. Bond +49
We investigate the microlensing data collected in the 2022 season from the high-cadence microlensing surveys in order to find weak signals produced by planetary companions to lense…
KMT-2022-BLG-2397: Brown Dwarf at the Upper Shore of the Einstein Desert
Andrew Gould, Yoon-Hyun Ryu, Jennifer C. Yee +17
We measure the Einstein radius of the single-lens microlensing event KMT-2022-BLG-2397 to be theta_E=24.8 +- 3.6 uas, placing it at the upper shore of the Einstein Desert, 9 < thet…
KMT-2021-BLG-1150Lb: Microlensing planet detected through a densely covered planetary-caustic signal
Cheongho Han, Youn Kil Jung, Ian A. Bond +49
Recently, there have been reports of various types of degeneracies in the interpretation of planetary signals induced by planetary caustics. In this work, we check whether such deg…
Probable brown dwarf companions detected in binary microlensing events during the 2018-2020 seasons of the KMTNet survey
Cheongho Han, Youn Kil Jung, Doeon Kim +48
We inspect the microlensing data of the KMTNet survey collected during the 2018--2020 seasons in order to find lensing events produced by binaries with brown-dwarf companions. In o…
ULTRASAT: A wide-field time-domain UV space telescope
Y. Shvartzvald, E. Waxman, A. Gal-Yam +41
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is scheduled to be launched to geostationary orbit in 2026. It will carry a telescope with an unprecedentedly large field o…
The Large Array Survey Telescope -- System Overview and Performances
E. O. Ofek, S. Ben-Ami, D. Polishook +38
The Large Array Survey Telescope (LAST) is a wide-field visible-light telescope array designed to explore the variable and transient sky with a high cadence. LAST will be composed…
KMT-2021-BLG-2010Lb, KMT-2022-BLG-0371Lb, and KMT-2022-BLG-1013Lb: Three microlensing planets detected via partially covered signals
Cheongho Han, Chung-Uk Lee, Weicheng Zang +25
We inspect 4 microlensing events KMT-2021-BLG-1968, KMT-2021-BLG-2010, KMT-2022-BLG-0371, and KMT-2022-BLG-1013, for which the light curves exhibit partially covered short-term cen…
MOA-2022-BLG-249Lb: Nearby microlensing super-Earth planet detected from high-cadence surveys
Cheongho Han, Andrew Gould, Youn Kil Jung +51
We investigate the data collected by the high-cadence microlensing surveys during the 2022 season in search for planetary signals appearing in the light curves of microlensing even…
The Large Array Survey Telescope -- Science Goals
S. Ben-Ami, E. O. Ofek, D. Polishook +20
The Large Array Survey Telescope (LAST) is designed to survey the variable and transient sky at high temporal cadence. The array is comprised of 48 F/2.2 telescopes of 27.9cm apert…
Systematic KMTNet Planetary Anomaly Search. IX. Complete Sample of 2016 Prime-Field Planets
In-Gu Shin, Jennifer C. Yee, Weicheng Zang +58
As a part of the ``Systematic KMTNet Planetary Anomaly Search" series, we report five new planets (namely, OGLE-2016-BLG-1635Lb, MOA-2016-BLG-532Lb, KMT-2016-BLG-0625Lb, OGLE-2016-…
OGLE-2016-BLG-1195 AO: Lens, Companion to Lens or Source, or None of the Above?
Andrew Gould, Yossi Shvartzvald, Jiyuan Zhang +4
We systematically investigate the claim by Vandorou et al. (2023) to have detected the host star of the low mass-ratio () microlensing planet OGLE-2016-BLG-1195Lb, via K…
Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets
Youn Kil Jung, Weicheng Zang, Hanyue Wang +41
We complete the publication of all microlensing planets (and ``possible planets'') identified by the uniform approach of the KMT AnomalyFinder system in the 21 KMT subprime fields…
OGLE-2017-BLG-1038: A Possible Brown-dwarf Binary Revealed by Spitzer Microlensing Parallax
Amber Malpas, Michael D. Albrow, Jennifer C. Yee +41
We report the analysis of microlensing event OGLE-2017-BLG-1038, observed by the Optical Gravitational Lensing Experiment, Korean Microlensing Telescope Network, and Spitzer telesc…
KMT-2021-BLG-1122L: The first microlensing triple stellar system
Cheongho Han, Youn Kil Jung, Andrew Gould +19
We systematically inspect the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the l…