Related papers: Characterizing Low-Mass Binaries From Observation …

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

OGLE-2005-BLG-153: Microlensing Discovery and Characterization of A Very Low Mass Binary

The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly known due to observational difficulties caused by the…

Solar and Stellar Astrophysics · Physics 2015-05-19 K. -H. Hwang , A. Udalski , C. Han , Y. -H. Ryu , I. A. Bond , J. -P. Beaulieu , M. Dominik , K. Horne , A. Gould , B. S. Gaudi , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , L. Wyrzykowski , F. Abe , C. S. Botzler , J. B. Hearnshaw , Y. Itow , K. Kamiya , P. M. Kilmartin , K. Masuda , Y. Matsubara , M. Motomura , Y. Muraki , S. Nakamura , K. Ohnishi , C. Okada , N. Rattenbury , To. Saito , T. Sako , M. Sasaki , D. J. Sullivan , T. Sumi , P. J. Tristram , J. N. Wood , P. C. M. Yock , T. Yoshioka , M. Albrow , D. P. Bennett , D. M. Bramich , S. Brillant , J. A. R. Caldwell , J. J. Calitz , A. Cassan , K. H. Cook , E. Corrales , C. Coutures , M. Desort , S. Dieters , D. Dominis , J. Donatowicz , P. Fouque , J. Greenhill , K. Harpsoe , K. Hill , M. Hoffman , U. G. Jorgensen , S. Kane , D. Kubas , R. Martin , J. -B. Marquette , P. Meintjes , J. Menzies , K. Pollard , K. Sahu , I. Steele , C. Vinter , J. Wambsganss , A. Williams , K. Woller , M. Burgdorf , C. Snodgrass , M. Bode , D. L. Depoy , C. -U. Lee , B. -G. Park , R. W. Pogge

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

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

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

Binary microlensing event OGLE-2009-BLG-020 gives a verifiable mass, distance and orbit predictions

We present the first example of binary microlensing for which the parameter measurements can be verified (or contradicted) by future Doppler observations. This test is made possible by a confluence of two relatively unusual circumstances.…

Solar and Stellar Astrophysics · Physics 2015-05-27 J. Skowron , A. Udalski , A. Gould , Subo Dong , L. A. G. Monard , C. Han , C. R. Nelson , J. McCormick , D. Moorhouse , G. Thornley , A. Maury , D. M. Bramich , J. Greenhill , S. Kozlowski , I. Bond , R. Poleski , L. Wyrzykowski , K. Ulaczyk , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , B. S. Gaudi , J. C. Yee , L. -W. Hung , R. W. Pogge , D. L. DePoy , C. -U. Lee , B. -G. Park , W. Allen , F. Mallia , J. Drummond , G. Bolt , A. Allan , P. Browne , N. Clay , M. Dominik , S. Fraser , K. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , R. A. Street , Y. Tsapras , F. Abe , D. P. Bennett , C. S. Botzler , D. Douchin , M. Freeman , A. Fukui , K. Furusawa , F. Hayashi , J. B. Hearnshaw , S. Hosaka , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , S. Makita , K. Masuda , Y. Matsubara , Y. Muraki , T. Nagayama , N. Miyake , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , T. Sumi , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , J. -P. Beaulieu , P. Fouque , M. D. Albrow , V. Batista , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub

Microlensig Binaries with Candidate Brown Dwarf Companions

Brown dwarfs are important objects because they may provide a missing link between stars and planets, two populations that have dramatically different formation history. In this paper, we present the candidate binaries with brown dwarf…

Solar and Stellar Astrophysics · Physics 2015-06-11 I. -G. Shin , C. Han , A. Gould , A. Udalski , T. Sumi , M. Dominik , J. -P. Beaulieu , Y. Tsapras , V. Bozza , 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 , M. Freeman , 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 , G. W. Christie , D. L. Depoy , S. Dong , A. Gal-Yam , B. S. Gaudi , L. -W. Hung , J. Janczak , S. Kaspi , D. Maoz , J. McCormick , D. McGregor , D. Moorhouse , J. A. Muñoz , T. Natusch , C. Nelson , R. W. Pogge , T. -G. Tan , D. Polishook , Y. Shvartzvald , A. Shporer , G. Thornley , U. Malamud , J. C. Yee , J. -Y. Choi , Y. -K. Jung , H. Park , C. -U. Lee , B. -G. Park , J. -R. Koo , D. Bajek , D. M. Bramich , P. Browne , K. Horne , S. Ipatov , C. Snodgrass , I. Steele , R. Street , K. A. Alsubai , 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 , M. Hundertmark , J. Jessen-Hansen , U. G. Jørgensen , N. Kains , E. Kerins , C. Liebig , M. Lund , M. Lundkvist , L. Mancini , M. Mathiasen , A. Hornstrup , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Southworth , J. Surdej , J. Tregloan-Reed , O. Wertz , F. Zimmer , M. D. Albrow , V. Batista , 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 , K. Hill , M. Hoffman , 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

Spitzer as Microlens Parallax Satellite: Mass and Distance Measurements of Binary Lens System OGLE-2014-BLG-1050L

We report the first mass and distance measurement of a caustic-crossing binary system OGLE-2014-BLG-1050L using the space-based microlens parallax method. \emph{Spitzer} captured the second caustic-crossing of the event, which occurred…

Solar and Stellar Astrophysics · Physics 2015-05-27 Wei Zhu , A. Udalski , A. Gould , M. Dominik , V. Bozza , C. Han , J. C. Yee , S. Calchi Novati , C. A. Beichman , S. Carey , R. Poleski , J. Skowron , S. Kozlowski , P. Mroz , P. Pietrukowicz , G. Pietrzynski , M. K. Szymanski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , C. Han , B. S. Gaudi , R. W. Pogge , D. L. DePoy , Y. K. Jung , J. -Y. Choi , K. -H. Hwang , I. -G. Shin , H. Park , J. Jeong

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

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-2015-BLG-0479LA,B: Binary Gravitational Microlens Characterized by Simultaneous Ground-based and Space-based Observation

We present a combined analysis of the observations of the gravitational microlensing event OGLE-2015-BLG-0479 taken both from the ground and by the {\it Spitzer Space Telescope}. The light curves seen from the ground and from space exhibit…

Solar and Stellar Astrophysics · Physics 2016-09-07 C. Han , A. Udalski , A. Gould , Wei Zhu , R. A. Street , J. C. Yee , C. Beichman , C. Bryden , S. Calchi Novati , S. Carey , M. Fausnaugh , B. S. Gaudi , Calen B. Henderson , Y. Shvartzvald , B. Wibking , M. K. Szymański , I. Soszyński , J. Skowron , P. Mróz , R. Poleski , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , Ł. Wyrzykowski , M. Pawlak , Y. Tsapras , M. Hundertmark , E. Bachelet , M. Dominik , D. M. Bramich , A. Cassan , R. Figuera Jaimes , K. Horne , C. Ranc , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , S. Mao , V. Bozza , U. G. Jørgensen , K. A. Alsubai , S. Ciceri , G. D'Ago , T. Haugbølle , F. V. Hessman , T. C. Hinse , D. Juncher , H. Korhonen , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , J. Southworth , D. Starkey , J. Surdej , O. Wertz , M. Zarucki , R. W. Pogge , D. L. DePoy

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

OGLE-2013-BLG-0578L: Microlensing Binary Composed of A Brown Dwarf And An M Dwarf

Determining physical parameters of binary microlenses is hampered by the lack of information about the angular Einstein radius due to the difficulty of resolving caustic crossings. In this paper, we present the analysis of the binary…

Solar and Stellar Astrophysics · Physics 2015-06-03 H. Park , A. Udalski , C. Han , R. Poleski , J. Skowron , S. Kozłowski , Ł. Wyrzykowski , M. K. Szymański , P. Pietrukowicz , G. Pietrzyński , I. Soszyński , K. Ulaczyk

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

KMT-2016-BLG-1820 and KMT-2016-BLG-2142: Two Microlensing Binaries Composed of Planetary-mass Companions and Very-Low-Mass Primaries

We present the analyses of two short-timescale $(t_{\rm E} \sim 5~{\rm days})$ microlensing events, KMT-2016-BLG-1820 and KMT-2016-BLG-2142. In both light curves, the brief anomalies were clearly captured and densely covered by the Korea…

Solar and Stellar Astrophysics · Physics 2018-11-14 Youn Kil Jung , Kyu-Ha Hwang , Yoon-Hyun Ryu , Andrew Gould , Cheongho Han , Jennifer C. Yee , Michael D. Albrow , Sun-Ju Chung , In-Gu Shin , Yossi Shvartzvald , Weicheng Zang , 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

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

OGLE-2014-BLG-1112LB: A Microlensing Brown Dwarf Detected Through the Channel of a Gravitational Binary-Lens Event

Due to the nature depending on only the gravitational field, microlensing, in principle, provides an important tool to detect faint and even dark brown dwarfs. However, the number of identified brown dwarfs is limited due to the difficulty…

Solar and Stellar Astrophysics · Physics 2017-07-19 C. Han , A. Udalski , V. Bozza , M. K. Szymań ski , I. Soszyński , J. Skowron , P. Mróz , R. Poleski , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , Ł. Wyrzykowski , S. Calchi Novati , G. D'Ago , M. Dominik , M. Hundertmark , U. G. Jorgensen , G. Scarpetta

OGLE-2017-BLG-0537: Microlensing Event with a Resolvable Lens in $\lesssim 5$ years from High-resolution Follow-up Observations

We present the analysis of the binary-lens microlensing event OGLE-2017-BLG-0537. The light curve of the event exhibits two strong caustic-crossing spikes among which the second caustic crossing was resolved by high-cadence surveys. It is…

Solar and Stellar Astrophysics · Physics 2018-08-15 Y. K. Jung , C. Han , A. Udalski , A. Gould , M. D. Albrow , S. -J. Chung , K. -H. Hwang , C. -U. Lee , Y. -H. Ryu , I. -G. Shin , Y. Shvartzvald , J. C. Yee , W. Zang , W. Zhu , S. -M. Cha , D. -J. Kim , H. -W. Kim , S. -L. Kim , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge , W. -T. Kim , P. Mróz , R. Poleski , J. Skowron , M. K. Szymański , I. Soszyński , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak

OGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfs

We report the discovery of a binary composed of two brown dwarfs, based on the analysis of the microlensing event OGLE-2016-BLG-1469. Thanks to detection of both finite-source and microlens-parallax effects, we are able to measure both the…

Solar and Stellar Astrophysics · Physics 2017-07-19 C. Han , A. Udalski , T. Sumi , A. Gould , 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 , I. Soszyński , P. Mróz , P. Pietrukowicz , M. K. Szymański , J. Skowron R. Poleski , S. Kozłowski , K. Ulaczyk , M. Pawlak , F. Abe , Y. Asakura , D. P. Bennett , I. A. Bond , A. Bhattacharya , M. Donachie , M. Freeman , 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 , H. Oyokawa , N. J. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , R. Barry

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