Related papers: A Likely Detection of a Two-Planet System in a Low…

OGLE-2015-BLG-0051/KMT-2015-BLG-0048Lb: a Giant Planet Orbiting a Low-mass Bulge Star Discovered by High-cadence Microlensing Surveys

We report the discovery of an extrasolar planet detected from the combined data of a microlensing event OGLE-2015-BLG-0051/KMT-2015-BLG-0048 acquired by two microlensing surveys. Despite that the short planetary signal occurred in the very…

Earth and Planetary Astrophysics · Physics 2016-10-05 C. Han , A. Udalski , A. Gould , V. Bozza , Y. K. Jung , M. D. Albrow , S. -L. Kim , C. -U. Lee , S. -M. Cha , D. -J. Kim , Y. Lee , B. -G. Park , I. -G. Shin , M. K. Szymański , I. Soszyński , J. Skowron , P. Mróz , R. Poleski , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , Ł. Wyrzykowski , M. Pawlak

On Planetary Companions to the MACHO-98-BLG-35 Microlens Star

We present observations of microlensing event MACHO-98-BLG-35 which reached a peak magnification factor of almost 80. These observations by the Microlensing Planet Search (MPS) and the MOA Collaborations place strong constraints on the…

Astrophysics · Physics 2009-10-31 S. H. Rhie , D. P. Bennett , A. C. Becker , B. A. Peterson , P. C. Fragile , B. R. Johnson , J. L. Quinn , A. Crouch , J. Gray , L. King , B. Messenger , S. Thomson , I. A. Bond , F. Abe , B. S. Carter , R. J. Dodd , J. B. Hearnshaw , M. Honda , J. Jugaku , S. Kabe , P. M. Kilmartin , B. S. Koribalski , K. Masuda , Y. Matsubara , Y. Muraki , T. Nakamura , G. R. Nankivell , S. Noda , N. J. Rattenbury , M. Reid , N. J. Rumsey , To. Saito , H. Sato , S. Sato , M. Sekiguchi , D. J. Sullivan , T. Sumi , Y. Watase , T. Yanagisawa , P. C. M. Yock , M. Yoshizawa

OGLE-2014-BLG-1186: gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source?

(abridged) Using the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale $t_\mathrm{E}$ ~ 300 d, we present a methodology for identifying the nature of localised deviations from single-lens point-source…

Earth and Planetary Astrophysics · Physics 2019-02-27 M. Dominik , E. Bachelet , V. Bozza , R. A. Street , C. Han , M. Hundertmark , A. Udalski , D. M. Bramich , K. A. Alsubai , S. Calchi Novati , S. Ciceri , G. D'Ago , R. Figuera Jaimes , T. Haugbølle , T. C. Hinse , K. Horne , U. G. Jørgensen , D. Juncher , N. Kains , H. Korhonen , L. Mancini , J. Menzies , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , R. Schmidt , J. Skottfelt , C. Snodgrass , J. Southworth , D. Starkey , I. A. Steele , J. Surdej , Y. Tsapras , J. Wambsganss , O. Wertz , P. Pietrukowicz , M. K. Szymański , P. Mróz , J. Skowron , I. Soszyński , K. Ulaczyk , R. Poleski

A New Channel to Search for Extra-solar Systems with Multiple Planets via Gravitational Microlensing

Gaudi, Naber & Sackett pointed out that if an event is caused by a lens system containing more than two planets, all planets will affect the central region of the magnification pattern, and thus the existence of the multiple planets can be…

Astrophysics · Physics 2017-01-18 Cheongho Han , Myeong-Gu Park

A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing

We present the discovery of a substellar companion to the primary host lens in the microlensing event MOA-2012-BLG-006. The companion-to-host mass ratio is 0.016, corresponding to a companion mass of $\approx8~M_{\rm Jup} (M_*/0.5M_\odot)$.…

Earth and Planetary Astrophysics · Physics 2017-11-15 R. Poleski , A. Udalski , I. A. Bond , J. P. Beaulieu , C. Clanton , S. Gaudi , M. K. Szymański , I. Soszyński , P. Pietrukowicz , Szymon Kozłowski , J. Skowron , Ł. Wyrzykowski , K. Ulaczyk , D. P. Bennett , T. Sumi , D. Suzuki , N. J. Rattenbury , N. Koshimoto , F. Abe , Y. Asakura , R. K. Barry , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Hirao , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , To. Saito , A. Sharan , D. J. Sullivan , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , V. Batista , J. B. Marquette

Interpretation of Strong Short-Term Central Perturbations in the Light Curves of Moderate-Magnification Microlensing Events

To improve the planet detection efficiency, current planetary microlensing experiments are focused on high-magnification events searching for planetary signals near the peak of lensing light curves. However, it is known that central…

Earth and Planetary Astrophysics · Physics 2015-05-14 C. Han , K. -H. Hwang , D. Kim , A. Udalski , F. Abe , L. A. B. Monard , J. McCormick , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , O. Szewczyk , L. Wyrzykowski , K. Ulaczyk , I. A. Bond , C. S. Botzler , A. Fukui , K. Furusawa , J. B. Hearnshaw , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , K. Ohnishi , T. Tokumura , Y. C. Perrott , N. Rattenbury , To. Saito , T. Sako , L. Skuljan , D. S. Sullivan , T. Sumi , W. L. Sweatman , P. J. Tristram , P. C. M. Yock , W. Allen , G. W. Christie , D. L. DePoy , S. Dong , B. S. Gaudi , A. Gould , C. -U. Lee , T. Natusch , B. -G. Park , R. W. Pogge , M. D. Albrow , A. Allan , V. Batista , J. P. Beaulieu , D. P. Bennett , S. Brillant , M. Bode , D. M. Bramich , M. Burgdorf , J. A. R. Caldwell , H. Calitz , A. Cassan , E. Corrales , S. Dieters , D. D. Prester , M. Dominik , J. Donatowicz , P. Fouque , J. Greenhill , K. Hill , M. Hoffman , K. Horne , U. G. Jorgensen , N. Kains , D. Kubas , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , C. Snodgrass , I. Steele , R. Street , Y. Tsapras , J. Wambsganss , A. Williams , M. Zub

Four binary microlenses with directly measured masses

We investigated binary lens events from the 2022-2024 microlensing surveys, aiming to identify events suitable for lens mass measurements. We focused on two key light curve features: distinct caustic spikes with resolved crossings for…

Instrumentation and Methods for Astrophysics · Physics 2025-08-18 Cheongho Han , Andrzej Udalski , Chung-Uk Lee , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Youn Kil Jung , Kyu-Ha Hwang , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Weicheng Zang , Hongjing Yang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz , Michał Jaroszyński , Marcin Kiraga , Fumio Abe , David P. Bennett , Aparna Bhattacharya , Akihiko Fukui , Ryusei Hamada , Stela Ishitani Silva , Yuki Hirao , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Tutumi Nagai , Kansuke Nunota , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Sean K. Terry , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama

KMT-2022-BLG-0440Lb: A New $q < 10^{-4}$ Microlensing Planet with the Central-Resonant Caustic Degeneracy Broken

We present the observations and analysis of a high-magnification microlensing planetary event, KMT-2022-BLG-0440, for which the weak and short-lived planetary signal was covered by both the KMTNet survey and follow-up observations. The…

Earth and Planetary Astrophysics · Physics 2023-05-17 Jiyuan Zhang , Weicheng Zang , Youn Kil Jung , Hongjing Yang , Andrew Gould , Takahiro Sumi , Shude Mao , Subo Dong , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Qiyue Qian , Zhuokai Liu , Dan Maoz , Matthew T. Penny , Wei Zhu , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Ian A. Bond , Hirosane Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Arisa Okamura , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Daisuke Suzuki , Taiga Toda , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita

Six microlensing planets detected via sub-day signals during the 2023 -- 2024 season

We present analyses of six microlensing events: KMT-2023-BLG-0548, KMT-2023-BLG-0830, KMT-2023-BLG-0949, KMT-2024-BLG-1281, KMT-2024-BLG-2059, and KMT-2024-BLG-2242. These were identified in KMTNet data from the 2023 -- 2024 seasons,…

Earth and Planetary Astrophysics · Physics 2025-09-09 Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Youn Kil Jung , Kyu-Ha Hwang , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Weicheng Zang , Hongjing Yang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz , Michał Jaroszyński , Marcin Kiraga , Fumio Abe , David P. Bennett , Aparna Bhattacharya , Akihiko Fukui , Ryusei Hamada , Stela Ishitani Silva , Yuki Hirao , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Tutumi Nagai , Kansuke Nunota , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Sean K. Terry , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama

A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge

We present the first microlensing candidate for a free-floating exoplanet-exomoon system, MOA-2011-BLG-262, with a primary lens mass of M_host ~ 4 Jupiter masses hosting a sub-Earth mass moon. The data are well fit by this exomoon model,…

Earth and Planetary Astrophysics · Physics 2015-06-18 D. P. Bennett , V. Batista , I. A. Bond , C. S. Bennett , D. Suzuki , J. -P. Beaulieu , A. Udalski , J. Donatowicz , F. Abe , C. S. Botzler , M. Freeman , D. Fukunaga , A. Fukui , Y. Itow , N. Koshimoto , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , T. Sumi , W. L. Sweatman , P. J. Tristram , N. Tsurumi , K. Wada , P. C. M. Yock , M. D. Albrow , E. Bachelet , S. Brillant , J. A. R. Caldwell , A. Cassan , A. A. Cole , E. Corrales , C. Coutures , S. Dieters , D. Dominis Prester , P. Fouque , J. Greenhill , K. Horne , J. -R. Koo , D. Kubas , J. -B. Marquette , R. Martin , J. W. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub J. Y. Choi , D. L. DePoy , Subo Dong , B. S. Gaudi , A. Gould , C. Han , C. B. Henderson , D. McGregor , C. -U. Lee , R. W. Pogge , I. -G. Shin , J. C. Yee , M. K. Szymaski , J. Skowron , R. Poleski , S. Kozowski , L. Wyrzykowski , M. Kubiak , P. Pietrukowicz , G. Pietrzyski , I. Soszyski , K. Ulaczyk , Y. Tsapras , R. A. Street , M. Dominik , D. M. Bramich , P. Browne , M. Hundertmark , N. Kains , C. Snodgrass , I. A. Steele , I. Dekany , O. A. Gonzalez , D. Heyrovsky , R. Kandori , E. Kerins , P. W. Lucas , D. Minniti , T. Nagayama , M. Rejkuba , A. C. Robin , R. Saito

High magnification events by MOA in 2007

Gravitational microlensing events of high magnification provide exceptional sensitivity to the presence of low-mass planets orbiting the lens star, including planets with masses as low as that of Earth. The essential requirement for the…

Astrophysics · Physics 2008-05-14 Philip Yock

OGLE-2017-BLG-0039: Microlensing Event with Light from the Lens Identified from Mass Measurement

We present the analysis of the caustic-crossing binary microlensing event OGLE-2017-BLG-0039. Thanks to the very long duration of the event, with an event time scale $t_{\rm E}\sim 130$ days, the microlens parallax is precisely measured…

Solar and Stellar Astrophysics · Physics 2018-11-28 C. Han , Y. K. Jung , A. Udalski , I. Bond , V. Bozza , M. D. Albrow , S. -J. Chung , A. Gould , K. -H. Hwang , D. Kim , C. -U. Lee , H. -W. Kim , Y. -H. Ryu , I. -G. Shin , J. C. Yee , Y. Shvartzvald , S. -M. Cha , S. -L. Kim , D. -J. Kim , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge , M. K. Szymański , P. Mróz , J. Skowron , R. Poleski , I. Soszyński , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak , F. Abe , R. Barry , D. P. Bennett , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Hirao , Y. Itow , K. Kawasaki , N. Koshimoto , M. C. A. Li , C. H. Ling , Y. Matsubara , S. Miyazaki , H. Munakata , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , N. Rattenbury , T. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , A. Yonehara

OGLE-2015-BLG-0196: Ground-based Gravitational Microlens Parallax Confirmed By Space-Based Observation

In this paper, we present the analysis of the binary gravitational microlensing event OGLE-2015-BLG-0196. The event lasted for almost a year and the light curve exhibited significant deviations from the lensing model based on the…

Earth and Planetary Astrophysics · Physics 2017-01-11 C. Han , A. Udalski , A. Gould , Wei Zhu , M. K. Szymański , I. Soszyński , J. Skowron , P. Mróz , R. Poleski , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , M. Pawlak , J. C. Yee , C. Beichman , S. Calchi Novati , S. Carey , C. Bryden , M. Fausnaugh , B. S. Gaudi , Calen B. Henderson , Y. Shvartzvald , B. Wibking

Properties of Microlensing Central Perturbations by Planets in Binary Stellar Systems under the Strong Finite-Source Effect

We investigate high-magnification events caused by planets in wide binary stellar systems under the strong finite-source effect, where the planet orbits one of the companions. From this, we find that the pattern of central perturbations in…

Earth and Planetary Astrophysics · Physics 2015-05-18 Sun-Ju Chung , Byeong-Gon Park

Three binary-source binary-lens microlensing events from the 2024 microlensing campaign

We investigated microlensing events detected by the OGLE and KMTNet surveys during the 2024 observing season, focusing on those that exhibit very complex anomaly features. Through this analysis, we found that the light curves of three…

Solar and Stellar Astrophysics · Physics 2025-09-16 Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Youn Kil Jung , Kyu-Ha Hwang , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Weicheng Zang , Hongjing Yang , Doeon Kim , Dong-Jin Kim , Byeong-Gon Park , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz

KMT-2023-BLG-1431Lb: A New $q < 10^{-4}$ Microlensing Planet from a Subtle Signature

The current studies of microlensing planets are limited by small number statistics. Follow-up observations of high-magnification microlensing events can efficiently form a statistical planetary sample. Since 2020, the Korea Microlensing…

Earth and Planetary Astrophysics · Physics 2023-11-23 Aislyn Bell , Jiyuan Zhang , Youn Kil Jung , Jennifer C. Yee , Hongjing Yang , Takahiro Sumi , Andrzej Udalski , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Cheongho Han , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Yunyi Tang , Jennie McCormick , Subo Dong , Zhuokai Liu , Shude Mao , Dan Maoz , Wei Zhu , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Ian A. Bond , Hirosane Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Arisa Okamura , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Daisuke Suzuki , Taiga Toda , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita , Przemek Mróz , Jan Skowron , Radoslaw Poleski , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Mariusz Gromadzki

Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050

We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute planet detection efficiencies for this event in order to…

Earth and Planetary Astrophysics · Physics 2010-10-19 V. Batista , Subo Dong , A. Gould , J. P. Beaulieu , A. Cassan , G. W. Christie , C. Han , A. Udalski , W. Allen , D. L. DePoy , A. Gal-Yam , B. S. Gaudi , B. Johnson , S. Kaspi , C. U. Lee , D. Maoz , J. McCormick , I. McGreer , B. Monard , T. Natusch , E. Ofek , B. -G. Park , R. W. Pogge , D. Polishook , A. Shporer , M. D. Albrow , D. P. Bennett , S. Brillant , M. Bode , D. M. Bramich , M. Burgdorf , J. A. R. Caldwell , H. Calitz , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , M. Dominik , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , K. Horne , U. G. Jørgensen , N. Kains , S. Kane , D. Kubas , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , C. Snodgrass , I. Steele , Y. Tsapras , J. Wambsganss , A. Williams , M. Zub , Ł. Wyrzykowski , M. Kubiak , M. K. Szymański , G. Pietrzyński , I. Soszyński , O. Szewczyk , K. Ulaczyk , F. Abe , I. A. Bond , A. Fukui , K. Furusawa , J. B. Hearnshaw , S. Holderness , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , K. Ohnishi , T. Okumura , Y. C. Perrott , N. Rattenbury , To. Saito , T. Sako , L. Skuljan , D. Sullivan , T. Sumi , W. L. Sweatman , P. J. Tristram , P. C. M. Yock

Mass Production of 2023 KMTNet Microlensing Planets. III: Three Planets from the Subprime Field

To complete the analysis of the 2023 KMTNet subprime-field microlensing planetary events identified by its AlertFinder system, we present the analysis of six events, KMT-2023-BLG-(1810, 0084, 1118, 0584, 1697, 2218). We find that the first…

Earth and Planetary Astrophysics · Physics 2026-05-11 Hongyu Li , Zhixing Li , Weicheng Zang , Yoon-Hyun Ryu , Andrzej Udalski , Takahiro Sumi , Hongjing Yang , Jiyuan Zhang , Shude Mao , Michael Albrow , Sun-Ju Chung , Andrew Gould , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer Yee , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard Pogge , Przemek Mróz , Michał Szymański , Jan Skowron , Radoslaw Poleski , Igor Soszyński , Pawel Pietrukowicz , Szymon Kozłowski , Krzysztof Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz , Fumio Abe , David Bennett , Aparna Bhattacharya , Ian Bond , Ryusei Hamada , Yuki Hirao , Stela Silva , Shota Miyazaki , Yasushi Muraki , Kansuke Nunota , Greg Olmschenk , Clément Ranc , Nicholas Rattenbury , Yuki Satoh , Daisuke Suzuki , Takuto Tamaoki , Sean Terry , Paul Tristram , Aikaterini Vandorou , Hibiki Yama

OGLE-2018-BLG-0584 and KMT-2018-BLG-2119: two microlensing events with two lens masses and two source stars

We conduct a systematic investigation of the microlensing data collected during the previous observation seasons for the purpose of reanalyzing anomalous lensing events with no suggested plausible models. We find that two anomalous lensing…

Solar and Stellar Astrophysics · Physics 2023-03-01 Cheongho Han , Andrzej Udalski , Youn Kil Jung , Doeon Kim , Hongjing Yang , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Hyoun-Woo Kim , Chung-Uk Lee , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Chun-Hwey Kim , Woong-Tae Kim , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki

KMT-2021-BLG-1150Lb: Microlensing planet detected through a densely covered planetary-caustic signal

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 degeneracies persist in the case of well-covered signals by…

Earth and Planetary Astrophysics · Physics 2023-07-12 Cheongho Han , Youn Kil Jung , Ian A. Bond , Andrew Gould , Sun-Ju Chung , Michael D. Albrow , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Hongjing Yang , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Arisa Okamura , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Taiga Toda , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita