Related papers: Microlensig Binaries with Candidate Brown Dwarf Co…

Candidate Brown-dwarf Microlensing Events with Very Short Timescales and Small Angular Einstein Radii

Short-timescale microlensing events are likely to be produced by substellar brown dwarfs (BDs), but it is difficult to securely identify BD lenses based on only event timescales $t_{\rm E}$ because short-timescale events can also be…

Solar and Stellar Astrophysics · Physics 2020-03-11 Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Andrew Gould , Ian A. Bond , Valerio Bozza , 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 , Yuki Satoh , Hikaru Shoji , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Takeharu Yamakawa , Tsubasa Yamawaki , Atsunori Yonehara

Mass Estimates for Some of the Binary Lenses in OGLE III Database

We model binary microlensing events OGLE 2003-BLG-170, 267, and 291. Source angular sizes are measured for the events 267 and 291. Model fits to the light curves give parallaxes for the events 267 and 291, and relative source sizes for 170…

Astrophysics · Physics 2007-05-23 M. Jaroszynski , A. Udalski , M. Kubiak , M. Szymanski , G. Pietrzynski , I. Soszynski , K. Zebrun , O. Szewczyk , L. Wyrzykowski

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

Binary Lenses in OGLE-II 1997-1999 Database. A Preliminary Study

We present 18 binary lens candidates from OGLE-II database for seasons 1997-1999. The candidates have been selected by visual light curves inspection from the subsample of strong transient events; the same procedure gives 215 single lens…

Astrophysics · Physics 2007-05-23 M. Jaroszynski

MOA-2010-BLG-073L: An M-Dwarf with a Substellar Companion at the Planet/Brown Dwarf Boundary

We present an analysis of the anomalous microlensing event, MOA-2010-BLG-073, announced by the Microlensing Observations in Astrophysics survey on 2010-03-18. This event was remarkable because the source was previously known to be…

Earth and Planetary Astrophysics · Physics 2015-06-12 R. A. Street , J. -Y. Choi , Y. Tsapras , C. Han , K. Furusawa , M. Hundertmark , A. Gould , T. Sumi , I. A. Bond , D. Wouters , R. Zellem , A. Udalski , C. Snodgrass , K. Horne , M. Dominik , P. Browne , N. Kains , D. M. Bramich , D. Bajek , I. A. Steele , S. Ipatov , F. Abe , D. P. Bennett , C. S. Botzler , P. Chote , M. Freeman , A. Fukui , P. Harris , Y. Itow , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , T. Nagayama , S. Nishimaya , K. Ohnishi , N. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , R. Poleski , K. Ulaczyk , L. Wyrzykowski , J. Yee , S. Dong , I. -G. Shin , C. -U. Lee , J. Skowron , L. Andrade De Almeida , D. L. DePoy , B. S. Gaudi , L. -W. Hung , F. Jablonski , S. Kaspi , N. Klein , K. -H. Hwang , J. -R. Koo , D. Maoz , J. A. Munoz , R. W. Pogge , D. Polishhook , A. Shporer , J. McCormick , G. Christie , T. Natusch , B. Allen , J. Drummond , D. Moorhouse , G. Thornley , M. Knowler , M. Bos , G. Bolt , J. -P. Beaulieu , M. D. Albrow , V. Batista , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , E. Bachelet , J. Greenhill , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub , K. A. Alsubai , V. Bozza , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , S. Hardis , K. Harpsoe , F. Hessman , T. C. Hinse , U. G. Jorgensen , E. Kerins , C. Liebig , L. Mancini , M. Mathiasen , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , S. Schafer , F. Schonebeck , J. Southworth , J. Surdej

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

OGLE-2017-BLG-1038: A Possible Brown-dwarf Binary Revealed by Spitzer Microlensing Parallax

We report the analysis of microlensing event OGLE-2017-BLG-1038, observed by the Optical Gravitational Lensing Experiment, Korean Microlensing Telescope Network, and Spitzer telescopes. The event is caused by a giant source star in the…

Solar and Stellar Astrophysics · Physics 2023-02-16 Amber Malpas , Michael D. Albrow , Jennifer C. Yee , Andrew Gould , Andrzej Udalski , Antonio Herrera Martin , Spitzer Team , : , Charles A. Beichman , Geoffery Bryden , Sebastiano Calchi Novati , Sean Carey , Calen B. Henderson , B. Scott Gaudi , Yossi Shvartzvald , Wei Zhu , KMTNet Collaboration , : , Sang-Mok Cha , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Yoon-Hyun Ryu , In-Gu Shin , Weicheng Zang , OGLE Collaboration , : , Patryk Iwanek , Szymon Kozlowski , Przemek Mróz , Pawel Pietrukowicz , Radoslaw Poleski , Krzysztof A. Rybicki , Jan Skowron , Igor Soszyński , Michal K. Szymański , Krzysztof Ulaczyk

OGLE-2016-BLG-1266: A Probable Brown-Dwarf/Planet Binary at the Deuterium Fusion Limit

We report the discovery, via the microlensing method, of a new very-low-mass binary system. By combining measurements from Earth and from the Spitzer telescope in Earth-trailing orbit, we are able to measure the microlensing parallax of the…

Solar and Stellar Astrophysics · Physics 2018-05-23 M. D. Albrow , J. C. Yee , A. Udalski , S. Calchi Novati , S. Carey , C. B. Henderson , C. Beichman , G. Bryden , B. S. Gaudi , Y. Shvartzvald , M. K. Szymanśki , P. Mroź , J. Skowron , R. Poleski , I. Soszynśki , S. Kozlowski , . Pietrukowicz , K. Ulaczyk , M. Pawlak , S. -J. Chung , A. Gould , C. Han , K. -H. Hwang , Y. K. Jung , Y. -H. Ryu , I. -G. Shin , W. Zhu , S. -M. Cha , D. -J. Kim , H. -W. Kim , S. -L. Kim , C. -U. Lee , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge

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

We report observations of the binary microlensing event OGLE-2018-BLG-0022, provided by the ROME/REA Survey, which indicate that the lens is a low-mass binary star consisting of M3 (0.375+/-0.020 Msun) and M7 (0.098+/-0.005 Msun)…

Earth and Planetary Astrophysics · Physics 2019-05-15 R. A. Street , E. Bachelet , Y. Tsapras , M. P. G. Hundertmark , V. Bozza , M. Dominik , D. M. Bramich , A. Cassan , K. Horne , S. Mao , A. Saha , J. Wambsganss , Weicheng Zang , U. G. Jorgensen , P. Longa-Pena , N. Peixinho , S. Sajadian , M. J. Burgdorf , J. Campbell-White , S. Dib , D. F. Evans , Y. I. Fujii , T. C. Hinse , E. Khalouei , S. Lowry , S. Rahvar , M. Rabus , J. Skottfelt , C. Snodgrass , J. Southworth , J. Tregloan-Reed

Microlensing Binaries Discovered through High-Magnification Channel

Microlensing can provide a useful tool to probe binary distributions down to low-mass limits of binary companions. In this paper, we analyze the light curves of 8 binary lensing events detected through the channel of high-magnification…

Solar and Stellar Astrophysics · Physics 2015-05-30 I. -G. Shin , J. -Y. Choi , S. -Y. Park , C. Han , A. Gould , T. Sumi , A. Udalski , J. -P. Beaulieu , M. Dominik , W. Allen , M. Bos , G. W. Christie , D. L. Depoy , S. Dong , J. Drummond , A. Gal-Yam , B. S. Gaudi , L. -W. Hung , J. Janczak , S. Kaspi , C. -U. Lee , F. Mallia , D. Maoz , A. Maury , J. McCormick , L. A. G. Monard , D. Moorhouse , J. A. Muñoz , T. Natusch , C. Nelson , B. -G. Park , R. W. Pogge , D. Polishook , Y. Shvartzvald , A. Shporer , G. Thornley , J. C. Yee , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , A. Fukui , K. Furusawa , F. Hayashi , J. B. Hearnshaw , S. Hosaka , Y. Itow , K. Kamiya , P. M. Kilmartin , S. Kobara , A. Korpela , W. Lin , C. H. Ling , S. Makita , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , K. Nishimoto , K. Ohnishi , T. Okumura , K. Omori , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymański , M. Kubiak , G. Pietrzyński , I. Soszyński , R. Poleski , K. Ulaczyk , Ł. Wyrzykowski , S. Kozłowski , P. Pietrukowicz , M. D. Albrow , V. Batista , D. M. Bramich , S. Brillant , J. A. R. Caldwell , J. J. Calitz , A. Cassan , A. Cole , K. H. Cook , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , U. G. Jørgensen , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , C. Vinter , M. Zub , A. Allan , P. Browne , K. Horne , C. Snodgrass , I. Steele , R. Street , Y. Tsapras , K. A. Alsubai , V. Bozza , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , M. Glitrup , F. Grundahl , S. Hardis , K. Harpsøe , F. V. Hessman , T. C. Hinse , M. Hundertmark , N. Kains , E. Kerins , C. Liebig , G. Maier , L. Mancini , M. Mathiasen , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , S. Schäfer , F. Schönebeck , J. Skottfelt , J. Surdej , J. Southworth , F. Zimmer

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

Gravitational Binary-lens Events with Prominent Effects of Lens Orbital Motion

Gravitational microlensing events produced by lenses composed of binary masses are important because they provide a major channel to determine physical parameters of lenses. In this work, we analyze the light curves of two binary-lens…

Solar and Stellar Astrophysics · Physics 2015-06-16 H. Park , A. Udalski , C. Han , A. Gould , J. -P. Beaulieu , Y. Tsapras , M. K. Szymański , M. Kubiak , I. Soszyński , G. Pietrzyński , R. Poleski , K. Ulaczyk , P. Pietrukowicz , S. Kozłowski , J. Skowron , Ł. Wyrzykowski , J. -Y. Choi , D. L. Depoy , Subo Dong , B. S. Gaudi , K. -H. Hwang , Y. K. Jung , A. Kavka , C. -U. Lee , L. A. G. Monard , B. -G. Park , R. W. Pogge , I. Porritt , I. -G. Shin , J. C. Yee , M. D. Albrow , D. P. Bennett , J. A. R. Caldwell , A. Cassan , C. Coutures , D. Dominis , J. Donatowicz , P. Fouqué , J. Greenhill , M. Huber , U. G. Jørgensen , S. Kane , D. Kubas , J. -B. Marquette , J. Menzies , C. Pitrou , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub , A. Allan , D. M. Bramich , P. Browne , M. Dominik , K. Horne , M. Hundertmark , N. Kains , C. Snodgrass , I. A. Steele , R. A. Street

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-2016-BLG-0168 Binary Microlensing Event: Prediction and Confirmation of the Micorlens Parallax Effect from Space-based Observation

The microlens parallax is a crucial observable for conclusively identifying the nature of lens systems in microlensing events containing or composed of faint (even dark) astronomical objects such as planets, neutron stars, brown dwarfs, and…

Solar and Stellar Astrophysics · Physics 2017-10-11 I. -G. Shin , A. Udalski , J. C. Yee , S. Calchi Novati , C. Han , J. Skowron , P. Mróz , I. Soszyński , R. Poleski , M. K. Szymański , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak , M. D. Albrow , A. Gould , S. -J. Chung , K. -H. Hwang , Y. K. Jung , Y. -H. Ryu , W. Zhu , S. -M. Cha , D. -J. Kim , H. -W. Kim , S. -L. Kim , C. -U. Lee , Y. Lee , B. -G. Park , R. W. Pogge , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. B. Henderson , Y. Shvartzvald

Mass Measurements of Isolated Objects from Space-based Microlensing

We report on the mass and distance measurements of two single-lens events from the 2015 \emph{Spitzer} microlensing campaign. With both finite-source effect and microlens parallax measurements, we find that the lens of OGLE-2015-BLG-1268 is…

Solar and Stellar Astrophysics · Physics 2016-07-06 Wei Zhu , S. Calchi Novati , A. Gould , A. Udalski , C. Han , Y. Shvartzvald , C. Ranc , U. G. Jorgensen , R. Poleski , V. Bozza , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. B. Henderson , R. W. Pogge , I. Porritt , B. Wibking , J. C. Yee , M. Pawlak , M. K. Szymanski , J. Skowron , P. Mroz , S. Kozlowski , L. Wyrzykowski , P. Pietrukowicz , G. Pietrzynski , I. Soszynski , K. Ulaczyk , J. Y. Choi , H. Park , Y. K. Jung , I. -G. Shin , M. D. Albrow , B. -G. Park , S. -L. Kim , C. -U. Lee , D. -J. Kim , Y. Lee , M. Friedmann , S. Kaspi , D. Maoz , M. Hundertmark , R. A. Street , Y. Tsapras , D. M. Bramich , A. Cassan , M. Dominik , E. Bachelet , Subo Dong , R. Figuera Jaimes , K. Horne , S. Mao , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J. Wambsganss , J. Skottfelt , M. I. Andersen , M. J. Burgdorf , S. Ciceri , G. D'Ago , D. F. Evans , S. -H. Gu , T. C. Hinse , E. Kerins , H. Korhonen , M. Kuffmeier , L. Mancini , N. Peixinho , A. popovas , M. Rabus , S. Rahvar , R. T. Rasmussen , G. Scarpetta , J. Southworth , J. Surdej , C. von Essen , Y. -B. Wang , O. Wertz

MOA-2019-BLG-008Lb: a new microlensing detection of an object at the planet/brown dwarf boundary

We report on the observations, analysis and interpretation of the microlensing event MOA-2019- BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not…

Earth and Planetary Astrophysics · Physics 2022-08-17 E. Bachelet , Y. Tsapras , Andrew Gould , R. A. Street , David P. Bennett , M. P. G. Hundertmark , V. Bozza , D. M. Bramich , A. Cassan , M. Dominik , K. Horne , S. Mao , A. Saha , J. Wambsganss , Weicheng Zang , Fumio Abe , Richard Barry , Aparna Bhattacharya , Ian A. Bond , Akihiko Fukui , Hirosane Fujii , Yuki Hirao , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Greg Olmschenk , Clément Ranc , Arisa Okamura , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Stela Ishitani Silva , Taiga Toda , Paul . J. Tristram , Aikaterini Vandorou , Hibiki Yama , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Andrzej Udalski , Przemek Mróz , Rados law Poleski , Jan Skowron , Micha l K. Szymański , Igor Soszyński , Pawe l Pietrukowicz , Szymon Kozlowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Mariusz Gromadzki

OGLE-2008-BLG-510: first automated real-time detection of a weak microlensing anomaly - brown dwarf or stellar binary?

The microlensing event OGLE-2008-BLG-510 is characterised by an evident asymmetric shape of the peak, promptly detected by the ARTEMiS system in real time. The skewness of the light curve appears to be compatible both with binary-lens and…

Earth and Planetary Astrophysics · Physics 2015-06-04 V. Bozza , M. Dominik , N. J. Rattenbury , U. G. Joergensen , Y. Tsapras , D. M. Bramich , A. Udalski , I. A. Bond , C. Liebig , A. Cassan , P. Fouque , A. Fukui , M. Hundertmark , I. -G. Shin , S. H. Lee , J. -Y. Choi , S. -Y. Park , A. Gould , A. Allan , S. Mao , L. Wyrzykowski , R. A. Street , D. Buckley , T. Nagayama , M. Mathiasen , T. C. Hinse , S. Calchi Novati , K. Harpsoee , L. Mancini , G. Scarpetta , T. Anguita , M. J. Burgdorf , K. Horne , A. Hornstrup , N. Kains , E. Kerins , P. Kjaergaard , G. Masi , S. Rahvar , D. Ricci , C. Snodgrass , J. Southworth , I. A. Steele , J. Surdej , C. C. Thoene , J. Wambsganss , M. Zub , M. D. Albrow , V. Batista , J. -P. Beaulieu , D. P. Bennett , J. A. R. Caldwell , A Cole , K. H. Cook , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , J. Greenhill , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. R. Pollard , K. C. Sahu , A. Williams , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , R. Poleski , K. Ulaczyk , D. L. DePoy , S. Dong , C. Han , J. Janczak , C. -U. Lee , R. W. Pogge , F. Abe , K. Furusawa , J. B. Hearnshaw , Y. Itow , P. M. Kilmartin , A. V. Korpela , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , K. Ohnishi , Y. C. Perrott , To. Saito , L. Skuljan , D. J. Sullivan , T. Sumi , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , A. Gulbis , Y. Hashimoto , A. Kniazev , P. Vaisanen

OGLE-2017-BLG-1522: A giant planet around a brown dwarf located in the Galactic bulge

We report the discovery of a giant planet in the OGLE-2017-BLG-1522 microlensing event. The planetary perturbations were clearly identified by high-cadence survey experiments despite the relatively short event timescale of $t_{\rm E} \sim…

Earth and Planetary Astrophysics · Physics 2018-05-16 Y. K. Jung , A. Udalski , A. Gould , Y. -H. Ryu , J. C. Yee , C. Han , M. D. Albrow , C. -U. Lee , S. -L. Kim , K. -H. Hwang , S. -J. Chung , I. -G. Shin , W. Zhu , S. -M. Cha , D. -J. Kim , Y. Lee , B. -G. Park , D. -J. Lee , H. -W. Kim , R. W. Pogge , M. K. Szymański , P. Mróz , R. Poleski , J. Skowron , P. Pietrukowicz , I. Soszyński , S. Kozłowski , K. Ulaczyk , M. Pawlak , K. Rybicki

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-0263L\lowercase{b}: Microlensing Detection of a Very Low-mass Binary Companion Through a Repeating Event Channel

We report the discovery of a planet-mass companion to the microlens OGLE-2016-BLG-0263L. Unlike most low-mass companions that were detected through perturbations to the smooth and symmetric light curves produced by the primary, the…

Earth and Planetary Astrophysics · Physics 2017-09-13 C. Han , A. Udalski , A. Gould , I. A. Bond , M. D. Albrow , S. -J. Chung , Y. K. Jung , Y. -H. Ryu , I. -G. Shin , J. C. Yee , W. Zhu , S. -M. Cha , S. -L. Kim , D. -J. Kim , C. -U. Lee , Y. Lee , B. -G. Park , J. Skowron , P. Mróz , P. Pietrukowicz , S. Kozłowski , R. Poleski , M. K. Szymański , I. Soszyński , K. Ulaczyk , M. Pawlak , F. Abe , Y. Asakura , R. Barry , D. P. Bennett , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Hirao , Y. Itow , N. Koshimoto , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , N. J. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara