Related papers: OGLE-2018-BLG-0022: A Nearby M-dwarf Binary

OGLE-2009-BLG-023/MOA-2009-BLG-028: Characterization of a Binary Microlensing Event Based on Survey Data

We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine…

Solar and Stellar Astrophysics · Physics 2015-05-28 K. -H. Hwang , C. Han , A. Udalski , T. Sumi , A. Gould , M. Jaroszynski , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , L. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , 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 , K. Ohnishi , Y. C. Perrott , N. J. Rattenbury , To. Saito , T. Sako , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock

Characterizing Low-Mass Binaries From Observation of Long Time-scale Caustic-crossing Gravitational Microlensing Events

Despite astrophysical importance of binary star systems, detections are limited to those located in small ranges of separations, distances, and masses and thus it is necessary to use a variety of observational techniques for a complete view…

Solar and Stellar Astrophysics · Physics 2016-08-14 I. -G. Shin , C. Han , J. -Y. Choi , A. Udalski , T. Sumi , A. Gould , V. Bozza , M. Dominik , P. Fouqué , K. Horne , M. , K. Szymański , M. Kubiak , I. Soszyński , G. Pietrzyński , R. Poleski , K. Ulaczyk , P. Pietrukowicz , S. Kozłowski , J. Skowron , Ł. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , P. Chote , M. Freeman , A. Fukui , K. Furusawa , Y. Itow , S. Kobara , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , K. Ohmori , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , K. Suzuki , W. L. Sweatman , S. Takino , P. J. Tristram , K. Wada , P. C. M. Yock , D. M. Bramich , C. Snodgrass , I. A. Steele , R. A. Street , Y. Tsapras , K. A. Alsubai , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , X. -S. Fang , F. Grundahl , C. -H. Gu , S. Hardis , K. Harpsøe , T. C. Hinse , A. Hornstrup , M. Hundertmark , J. Jessen-Hansen , U. G. Jørgensen , N. Kains , E. Kerins , C. Liebig , M. Lund , M. Lunkkvist , L. Mancini , M. Mathiasen , M. T. Penny , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Southworth , J. Surdej , J. Tregloan-Reed , J. Wambsganss , O. Wertz , L. A. Almeida , V. Batista , G. Christie , D. L. DePoy , Subo Dong , B. S. Gaudi , C. Henderson , F. Jablonski , C. -U. Lee , J. McCormick , D. McGregor , D. Moorhouse , T. Natusch , H. Ngan , S. -Y. Park , R. W. Pogge , T. -G. Tan , G. Thornley , J. C. Yee , M. D. Albrow , E. Bachelet , J. -P. Beaulieu , S. Brillant , A. Cassan , A. A. Cole , E. Corrales , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , J. Greenhill , D. Kubas , J. -B. Marquette , J. W. Menzies , K. C. Sahu , M. Zub

First assessment of the binary lens OGLE-2015_BLG-0232

We present an analysis of the microlensing event OGLE-2015-BLG-0232. This event is challenging to characterize for two reasons. First, the light curve is not well sampled during the caustic crossing due to the proximity of the full Moon…

Earth and Planetary Astrophysics · Physics 2019-01-09 E. Bachelet , V. Bozza , C. Han , A. Udalski , I. A. Bond , J. -P. Beaulieu , R. A. Street , J. -I Kim , D. M. Bramich , A. Cassan , M. Dominik , R. Figuera Jaimes , K. Horne , M. Hundertmark , S. Mao , J. Menzies , C. Ranc , R. Schmidt , C. Snodgrass , I. A. Steele , Y. Tsapras , J. Wambsganss , P. Mróz , I. Soszyński , M. K. Szymański , J. Skowron , P. Pietrukowicz , S. Kozłowski , R. Poleski , K. Ulaczyk , M. Pawlak , F. Abe , R. Barry , D. P. Bennett , A. Bhattacharya , M. Donachie , A. Fukui , Y. Hirao , Y. Itow , K. Kawasaki , I. Kondo , N. Koshimoto , M. Cheung Alex Li , Y. Matsubara , Y. Muraki , S. Miyazaki , M. Nagakane , N. J. Rattenbury , H. Suematsu , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , A. Yonehara

OGLE-2014-BLG-0257L: A Microlensing Brown Dwarf Orbiting a Low-mass M Dwarf

In this paper, we report the discovery of a binary composed of a brown dwarf and a low-mass M dwarf from the observation of the microlensing event OGLE-2014-BLG-0257. Resolution of the very short-lasting caustic crossing combined with the…

Solar and Stellar Astrophysics · Physics 2016-05-25 C. Han , Y. K. Jung , A. Udalski , A. Gould , V. Bozza , M. K. Szymański , I. Soszyński , R. Poleski , S. Kozłowski , P. Pietrukowicz , J. Skowron , K. Ulaczyk , Ł. Wyrzykowski

OGLE-2018-BLG-1700L: Microlensing Planet in Binary Stellar System

We report the discovery of a planet in a binary that was discovered from the analysis of the microlensing event OGLE-2018-BLG-1700. We identify the triple nature of the lens from the fact that the complex anomaly pattern can be decomposed…

Earth and Planetary Astrophysics · Physics 2020-01-22 Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Andrew Gould , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , M. James Jee , Doeon Kim , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yoshitaka Itow , Yuki Hirao , Yuhei Kamei , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Masayuki Nagakane , Clément Ranc , Nicholas J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Takeharu Yamakawa , Atsunori Yonehara

OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event

In this work, we present the analysis of the binary microlensing event OGLE-2018-BLG-0022 that is detected toward the Galactic bulge field. The dense and continuous coverage with the high-quality photometry data from ground-based…

Solar and Stellar Astrophysics · Physics 2019-05-15 Cheongho Han , Ian A. Bond , Andrzej Udalski , Sebastiano Calchi Novati , Andrew Gould , Valerio Bozza , Yuki Hirao , Arnaud Cassan , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Youn Kil Jung , Doeon Kim , Woong-Tae Kim Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Weicheng Zang , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yoshitaka Itow , Kohei Kawasaki , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Masayuki Nagakane , Clément Ranc , Nicholas J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Charles A. Beichman , Geoffery Bryden , Sean Carey , B. Scott Gaudi , Calen B. Henderson

OGLE-2013-BLG-0102LA,B: Microlensing binary with components at star/brown-dwarf and brown-dwarf/planet boundaries

We present the analysis of the gravitational microlensing event OGLE-2013-BLG-0102. The light curve of the event is characterized by a strong short-term anomaly superposed on a smoothly varying lensing curve with a moderate magnification…

Solar and Stellar Astrophysics · Physics 2015-06-22 Y. K. Jung , A. Udalski , T. Sumi , C. Han , A. Gould , J. Skowron , S. Kozłowski , R. Poleski , Ł. Wyrzykowski , M. K. Szymański , G. Pietrzyński , I. Soszyński , K. Ulaczyk , P. Pietrukowicz , P. Mróz , M. Kubiak , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , N. Koshimoto , P. Larsen , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , L. Philpott , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , P. J. Tristram , N. Tsurumi , K. Wada , N. Yamai , P. C. M. Yock , A. Yonehara , M. Albrow , J. -Y. Choi , D. L. DePoy , B. S. Gaudi , K. -H. Hwang , C. -U. Lee , H. Park , S. Owen , R. W. Pogge , I. -G. Shin , J. C. Yee

OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects

We undertake a project to reexamine microlensing data gathered from high-cadence surveys. The aim of the project is to reinvestigate lensing events with light curves exhibiting intricate anomaly features associated with caustics, yet…

Solar and Stellar Astrophysics · Physics 2024-04-10 Cheongho Han , Andrzej Udalski , Ian A. Bond , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Hyoun-Woo Kim , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , 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 , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita

A possible binary system of a stellar remnant in the high magnification gravitational microlensing event OGLE-2007-BLG-514

We report the extremely high magnification (A > 1000) binary microlensing event OGLE-2007-BLG-514. We obtained good coverage around the double peak structure in the light curve via follow-up observations from different observatories. The…

Earth and Planetary Astrophysics · Physics 2015-06-05 N. Miyake , A. Udalski , T. Sumi , D. P. Bennett , S. Dong , R. A. Street , J. Greenhill , I. A. Bond , A. Gould , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , F. Abe , A. Fukui , K. Furusawa , S. Holderness , Y. Itow , A. Korpela , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , T. Nagayama , K. Ohnishi , N. Rattenbury , To. Saito , T. Sako , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock , W. Allen , G. W. Christie , D. L. DePoy , B. S. Gaudi , C. Han , C. -U. Lee , J. McCormick , B. Monard , T. Natusch , B. -G. Park , R. W. Pogge , A. Allan , M. Bode , D. M. Bramich , N. Clay , M. Dominik , K. D. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , Y. Tsapras , M. D. Albrow , V. Batista , J. P. Beaulieu , S. Brillant , M. Burgdorf , J. A. R. Caldwell , A. Cassan , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , U. G. Jorgensen , S. Kane , D. Kubas , J. B. Marquette , R. Martin , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub

OGLE-2016-BLG-0156: Microlensing Event With Pronounced Microlens-Parallax Effects Yielding Precise Lens Mass Measurement

We analyze the gravitational binary-lensing event OGLE-2016-BLG-0156, for which the lensing light curve displays pronounced deviations induced by microlens-parallax effects. The light curve exhibits 3 distinctive widely-separated peaks and…

Solar and Stellar Astrophysics · Physics 2019-02-27 Youn Kil Jung , Cheongho Han , Ian A. Bond , Andrzej Udalski , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , M. James Jee , Doeon Kim , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Kohei Kawasaki , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Masayuki~Nagakane , Clément Ranc , Nicholas J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara , Przemek Mróz , Radek Poleski , Jan Skowron , Michał K. Szymański , Igor Soszyński , Szymon Kozłowski , Paweł Pietrukowicz , Krzysztof Ulaczy , Michał Pawlak

OGLE-2023-BLG-0836L: The sixth microlensing planet in a binary stellar system

Light curves of microlensing events occasionally deviate from the smooth and symmetric form of a single-lens single-source event. While most of these anomalous events can be accounted for by employing a binary-lens single-source (2L1S) or a…

Earth and Planetary Astrophysics · Physics 2024-02-20 Cheongho Han , Andrzej Udalski , Youn Kil Jung , Andrew Gould , Doeon Kim , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Mateusz J. 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

An analysis of binary microlensing event OGLE-2015-BLG-0060

We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up…

Earth and Planetary Astrophysics · Physics 2019-06-07 Y. Tsapras , A. Cassan , C. Ranc , E. Bachelet , R. Street , A. Udalski , M. Hundertmark , V. Bozza , J. P. Beaulieu , J. B. Marquette , E. Euteneuer , The RoboNet team , : , D. M. Bramich , M. Dominik , R. Figuera Jaimes , K. Horne , S. Mao , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J. Wambsganss , The OGLE collaboration , : , P. Mróz , M. K. Szymański , I. Soszyński , J. Skowron , P. Pietrukowicz , S. Kozłowski , R. Poleski , K. Ulaczyk , M. Pawlak , The MiNDSTEp collaboration , : , U. G. Jørgensen , J. Skottfelt , A. Popovas , S. Ciceri , H. Korhonen , M. Kuffmeier , D. F. Evans , N. Peixinho , T. C. Hinse , M. J. Burgdorf , J. Southworth , R. Tronsgaard , E. Kerins , M. I. Andersen , S. Rahvar , Y. Wang , O. Wertz , M. Rabus , S. Calchi Novati , G. D'Ago , G. Scarpetta , L. Mancini , The MOA collaboration , : , F. Abe , Y. Asakura , 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 , K. Masuda , Y. Matsubara , Y. Muraki , S. Miyazaki , M. Nagakane , K. Ohnishi , N. Rattenbury , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , A. Yonehara

Precision measurement of a brown dwarf mass in a binary system in the microlensing event OGLE-2019-BLG-0033/MOA-2019-BLG-035

Context. Brown dwarfs are poorly understood transition objects between stars and planets, with several competing mechanisms having been proposed for their formation. Mass measurements are generally difficult for isolated objects but also…

Solar and Stellar Astrophysics · Physics 2022-07-20 A. Herald , A. Udalski , V. Bozza , P. Rota , I. A. Bond , J. C. Yee , S. Sajadian , P. Mroz , R. Poleski , J. Skowron , M. K. Szymanski , I. Soszynski , P. Pietrukowicz , S. Kozlowski , K. Ulaczyk , K. A. Rybicki , P. Iwanek , M. Wrona , M. Gromadzki , F. Abe , R. Barry , D. P. Bennett , A. Bhattacharya , A. Fukui , H. Fujii , Y. Hirao , Y. Itow , R. Kirikawa , I. Kondo , N. Koshimoto , Y. Matsubara , S. Matsumoto , S. Miyazaki , Y. Muraki , G. Olmschenk , C. Ranc , A. Okamura , N. J. Rattenbury , Y. Satoh , T. Sumi , D. Suzuki , S. Ishitani Silva , T. Toda , P. J. Tristram , A. Vandorou , H. Yama , C. A. Beichman , G. Bryden , S. Calchi Novati , S. Carey , B. S. Gaudi , A. Gould , C. B. Henderson , S. Johnson , Y. Shvartzvald , W. Zhu , M. Dominik , M. Hundertmark , U. G. Jorgensen , P. Longa-Pena , J. Skottfelt , J. Tregloan-Reed , N. Bach-Moller , M. Burgdorf , G. D'Ago , L. Haikala , J. Hitchcock , E. Khalouei , N. Peixinho , S. Rahvar , C. Snodgrass , J. Southworth , P. Spyratos , W. Zang , H. Yang , S. Mao , E. Bachelet , D. Maoz , R. A. Street , Y. Tsapras , G. W. Christie , T. Cooper , L. de Almeida , J. -D. do Nascimento , J. Green , C. Han , S. Hennerley , A. Marmont , J. McCormick , L. A. G. Monard , T. Natusch , R. Pogge

OGLE 2003-BLG-235/MOA 2003-BLG-53: A planetary microlensing event

We present observations of the unusual microlensing event OGLE 2003-BLG-235/MOA 2003-BLG-53. In this event a short duration (~7 days) low amplitude deviation in the light curve due a single lens profile was observed in both the MOA and OGLE…

Astrophysics · Physics 2009-11-10 I. A. Bond , A. Udalski , M. Jaroszynski , N. J. Rattenbury , B. Paczynski , I. Soszynski , L. Wyrzykowski , M. K. Szymanski , M. Kubiak , O. Szewczyk , K. Zebrun , G. Pietrzynski , F. Abe , D. P. Bennett , S. Eguchi , Y. Furuta , J. B. Hearnshaw , K. Kamiya , P. M. Kilmartin , Y. Kurata , K. Masuda , Y. Matsubara , Y. Muraki , S. Noda , K. Okajima , T. Sako , T. Sekiguchi , D. J. Sullivan , T. Sumi , P. J. Tristram , T. Yanagisawa , P. C. M. Yock

OGLE-2013-BLG-0911Lb: A Secondary on the Brown-Dwarf Planet Boundary around an M-dwarf

We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q~0.03 which differs from that reported in Shvartzvald+2016. The event suffers from the well-known…

Earth and Planetary Astrophysics · Physics 2020-02-05 Shota Miyazaki , Takahiro Sumi , David P. Bennett , Andrzej Udalski , Yossi Shvartzvald , Rachel Street , Valerio Bozza , Jennifer C. Yee , Ian A. Bond , Nicholas Rattenbury , Naoki Koshimoto , Daisuke Suzuki , Akihiko Fukui , F. Abe , A. Bhattacharya , R. Barry , M. Donachie , H. Fujii , Y. Hirao , Y. Itow , Y. Kamei , I. Kondo , M. C. A. Li , C. H. Ling , Y. Matsubara , T. Matsuo , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , T. Saito , A. Sharan , H. Shibai , H. Suematsu , D. J. Sullivan , P. J. Tristram , T. Yamakawa , A. Yonehara , J. Skowron , R. Poleski , P. Mr'oz , M. K. Szyma'nski , I. Soszy'nski , P. Pietrukowicz , S. KozLowski , K. Ulaczyk , L. Wyrzykowski , Matan Friedmann , Shai Kaspi , Dan Maoz , M. Albrow , G. Christie , D. L. DePoy , A. Gal-Yam , A. Gould , C. -U. Lee , I. Manulis , J. McCormick , T. Natusch , H. Ngan , R. W. Pogge , I. Porritt , Y. Tsapras , E. Bachelet , M. P. G. Hundertmark , M. Dominik , D. M. Bramich , A. Cassan , R. Figuera Jaimes , K. Horne , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , S. Mao , U. G. Jorgensen , M. J. Burgdorf , S. Ciceri , S. Calchi Novati , G. D'Ago , D. F. Evans , T. C. Hinse , N. Kains , E. Kerins , H. Korhonen , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , J. Southworth , G. D'Ago , N. Peixinho , P. Verma

OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects

We present the analysis of the microlensing event OGLE-2015-BLG-0845, which was affected by both the microlensing parallax and xallarap effects. The former was detected via the simultaneous observations from the ground and Spitzer, and the…

Solar and Stellar Astrophysics · Physics 2024-08-08 Zhecheng Hu , Wei Zhu , Andrew Gould , Andrzej Udalski , Takahiro Sumi , Ping Chen , Sebastiano Calchi Novati , Jennifer C. Yee , Charles A. Beichman , Geoffery Bryden , Sean Carey , Michael Fausnaugh , B. Scott Gaudi , Calen B. Henderson , Yossi Shvartzvald , Benjamin Wibking , Przemek Mróz , Jan Skowron , Radosław Poleski , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Mariusz Gromadzki , 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 , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Daisuke Suzuki , Mio Tomoyoshi , Paul. J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita

A New Non-Planetary Interpretation of the Microlensing Event OGLE-2013-BLG-0723

Recently, the discovery of a Venus-mass planet orbiting a brown-dwarf host in a binary system was reported from the analysis of the microlensing event OGLE-2013-BLG-0723. We reanalyze the event considering the possibility of other…

Earth and Planetary Astrophysics · Physics 2016-07-06 Cheongho Han , David P. Bennett , Andrzej Udalski , Youn Kil Jung

OGLE-2012-BLG-0724Lb: A Saturn-mass Planet around an M-dwarf

We report the discovery of a planet by the microlensing method, OGLE-2012-BLG-0724Lb. Although the duration of the planetary signal for this event was one of the shortest seen for a planetary event, the anomaly was well covered thanks to…

Earth and Planetary Astrophysics · Physics 2016-06-29 Y. Hirao , A. Udalski , T. Sumi , D. P. Bennett , I. A. Bond , N. Rattenbury , D. Suzuki , N. Koshimoto , F. Abe , Y. Asakura , A. Bhattacharya , M. Freeman , A. Fukui , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , T. Matsuo , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , P. J. Tristram , A. Yonehara , R. Poleski , J. Skowron , P. Mróz , M. K. Szymański , S. Kozłowski , P. Pietrukowicz , I. Soszyński , Ł. Wyzykowski , K. Ulaczyk

Precise mass measurement of OGLE-2013-BLG-0132/MOA-2013-BLG-148: a Saturn mass planet orbiting an M-dwarf

We revisit the planetary microlensing event OGLE-2013-BLG-0132/MOA-2013-BLG-148 using Keck adaptive optics imaging in 2013 with NIRC2 and in 2020, 7.4 years after the event, with OSIRIS. The 2020 observations yield a source and lens…

Earth and Planetary Astrophysics · Physics 2024-02-01 Natalia E. Rektsini , Virginie Batista , Clement Ranc , David P. Bennett , Jean-Philippe Beaulieu , Joshua W. Blackman , Andrew A. Cole , Sean K. Terry , Naoki Koshimoto , Aparna Bhattacharya , Aikaterini Vandorou , Thomas J. Plunkett , Jean-Baptiste Marquette

OGLE-2014-BLG-0962 and the First Statistical Validation of Bayesian Priors for Galactic Microlensing

OGLE-2014-BLG-0962 (OB140962) is a stellar binary microlensing event that was well-covered by observations from the Spitzer satellite as well as ground-based surveys. Modelling yields a unique physical solution: a mid-M+M-dwarf binary with…

Solar and Stellar Astrophysics · Physics 2018-05-25 Yutong Shan , Jennifer C. Yee , Andrzej Udalski , Ian A. Bond , Yossi Shvartzvald , In-Gu Shin , Youn-Kil Jung , Sebastiano Calchi Novati , Charles A. Beichman , Sean Carey , B. Scott Gaudi , Andrew Gould , Richard W. Pogge , Radosław Poleski , Jan Skowron , Szymon Kozłowski , Przemysław Mróz , Paweł Pietrukowicz , Michał K. Szymański , Igor Soszyński , Krzysztof Ulaczyk , Łukasz Wyrzykowski , Fumio Abe , Richard K. Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Kohei Kawasaki , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Masayuki Nagakane , Clément Ranc , Nicholas J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara , Dan Maoz , Shai Kaspi , Matan Friedmann