Related papers: OGLE-2008-BLG-510: first automated real-time detec…

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

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

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

Reanalyses of Anomalous Gravitational Microlensing Events in the OGLE-III Early Warning System Database with Combined Data

We reanalyze microlensing events in the published list of anomalous events that were observed from the OGLE lensing survey conducted during 2004-2008 period. In order to check the existence of possible degenerate solutions and extract extra…

Earth and Planetary Astrophysics · Physics 2015-06-24 J. Jeong , H. Park , C. Han , A. Gould , A. Udalski , M. K. Szymański , G. Pietrzyński , I. Soszyński , R. Poleski , K. Ulaczyk , Ł. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , N. Koshimoto , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , W. L. Sweatman , T. Sumi , D. Suzuki , P. J. Tristram , N. Tsurumi , K. Wada , N. Yamai , P. C. M. Yock , A. Yonehara , M. D. Albrow , V. Batista , J. -P. Beaulieu , J. A. R. Caldwell , A. Cassan , A. Cole , C. Coutures , S. Dieters , M. Dominik , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , M. Huber , U. G. Jørgensen , S. R. Kane , D. Kubas , R. Martin , J. -B. Marquette , J. Menzies , C. Pitrou , K. Pollard , K. C. Sahu , C. Vinter , J. Wambsganss , A. Williams , W. Allen , G. Bolt , J. -Y. Choi , G. W. Christie , D. L. DePoy , J. Drummond , B. S. Gaudi , K. -H. Hwang , Y. K. Jung , C. -U. Lee , F. Mallia , D. Maoz , A. Maury , J. McCormick , L. A. G. Monard , D. Moorhouse , T. Natusch , E. O. Ofek , B. -G. Park , R. W. Pogge , R. Santallo , I. -G. Shin , G. Thornley , J. C. Yee , A. Allan , D. M. Bramich , M. J. Burgdorf , K. Horne , M. Hundertmark , N. Kains , C. Snodgrass , I. Steele , R. Street , Y. Tsapras

OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing

We present an analysis of microlensing event OGLE-2016-BLG-0693, based on the survey-only microlensing observations by the OGLE and KMTNet groups. In order to analyze the light curve, we consider the effects of parallax, orbital motion, and…

Earth and Planetary Astrophysics · Physics 2017-12-06 Y. -H. Ryu , A. Udalski , J. C. Yee , M. D. Albrow , S. -J. Chung , A. Gould , C. Han , K. -H. Hwang , Y. K. Jung , I. -G. Shin , 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 , P. Pietrukowicz , S. Kozlowski , R. Poleski , J. Skowron , P. Mroz , M. K. Szymanski , I. Soszynski , M. Pawlak , K. Ulaczyk

Four-Body Gravitational Microlensing Events Involving Both a Binary Lens and a Binary Source

We present detailed analyses of three anomalous microlensing events--KMT-2021-BLG-0209, KMT-2021-BLG-0901, and OGLE-2025-BLG-0356--identified from a systematic re-examination of KMTNet light curves for which previous modeling attempts…

Solar and Stellar Astrophysics · Physics 2026-05-19 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 , Seung-Lee Kim , Dong-Joo Lee , Sang-Mok Cha , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymańskim Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz

OGLE-2005-BLG-018: Characterization of Full Physical and Orbital Parameters of a Gravitational Binary Lens

We present the analysis result of a gravitational binary-lensing event OGLE-2005-BLG-018. The light curve of the event is characterized by 2 adjacent strong features and a single weak feature separated from the strong features. The light…

Solar and Stellar Astrophysics · Physics 2015-05-28 I. -G. Shin , A. Udalski , C. Han , A. Gould , M. Dominik , P. Fouque , M. Kubiak , M. K. Szymanski , G. Pietrzynki , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , D. L. DePoy , S. Dong , B. S. Gaudi , C. -U. Lee , B. -G. Park , R. W. Pogge , M. D. Albrow , A. Allan , J. P. Beaulieu , D. P. Bennett , M. Bode , D. M. Bramich , S. Brillant , M. Burgadorf , J. A. R. Caldwell , H. Calitz , A. Cassan , K. H. Cook , E. Corrales , Ch. Coutures , N. Desort , S. Dieters , D. Dominis Prester , J. Donatowicz , S. N. Fraser , J. Greenhill , K. Hill , M. Hoffman , K. Horne , U. G. Jorgensen , S. R. Kane , D. Kubas , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , C. Mottram , T. Naylor , K. R. Pollard , K. C. Sahu , C. Snodgrass , I. Steele , C. Vinter , J. Wambsganss , A. Williams , K. Woller

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

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

The repeating microlensing event OGLE-2003-BLG-095: A plausible case for microlensing of a binary source

The apparently repeating microlensing event OGLE-2003-BLG-095 is analyzed. Data were obtained from the OGLE Internet archive and exist in the public domain. The source is relatively bright, with an unmagnified (but possibly blended)…

Astrophysics · Physics 2007-05-23 Matthew J. Collinge

KMT-2024-BLG-1044L: A sub-Uranus microlensing planet around a host at the star-brown dwarf mass boundary

We analysed microlensing data to uncover the nature of the anomaly that appeared near the peak of the short-timescale microlensing event KMT-2024-BLG-1044. Despite the anomaly's brief duration of less than a day, it was densely observed…

Earth and Planetary Astrophysics · Physics 2024-11-11 Cheongho Han , Yoon-Hyun Ryu , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Doeon Kim , Dong-Jin Kim , Byeong-Gon Park , Richard W. Pogge

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

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 Constraints on Low-Mass Companions

Microlensing is sensitive to binary, brown dwarf, and planetary companions to normal stars in the Galactic bulge with separations between about 1-10 AU. The accurate, densely-sampled photometry of microlensing events needed to detect…

Astrophysics · Physics 2007-05-23 B. Scott Gaudi

Six binary brown dwarf candidates identified by microlensing

In this study, we analyze microlensing events from the 2023 and 2024 observing seasons to identify cases likely caused by binary systems composed of BDs. By applying criteria that the binary-lens events exhibit well-resolved caustics, short…

Solar and Stellar Astrophysics · Physics 2025-10-29 Cheongho Han , Chung-Uk Lee , Ian A. Bond , 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 , 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 , Asahi Idei , Shota Miyazaki , Yasushi Muraki , Tutumi Nagai , Kansuke Nunota , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Takuto Tamaoki , Sean K. Terry , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama

OGLE-2018-BLG-1011L\lowercase{b,c}: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star

We report a multiplanetary system found from the analysis of microlensing event OGLE-2018-BLG-1011, for which the light curve exhibits a double-bump anomaly around the peak. We find that the anomaly cannot be fully explained by the…

Earth and Planetary Astrophysics · Physics 2019-09-04 Cheongho Han , David P. Bennett , Andrzej Udalski , Andrew Gould , Ian A. Bond , Yossi Shvartzvald , Kay-Sebastian Nikolaus , Markus Hundertmark , Valerio Bozza , Arnaud Cassan , Yuki Hirao , Etienne Bachelet , Michael D. Albrow , Sun-Ju Chung , Kyeongsoo Hong , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , In-Gu Shin , Jennifer C. Yee , Youn Kil Jung , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge 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 , 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 , Pascal Fouqué , Shude Mao , Tianshu Wang , Weicheng Zang , Wei Zhu , Matthew T. Penny , Charles A. Beichman , Geoffery Bryden , Sebastiano Calchi Novati , B. Scott Gaudi , Calen B. Henderson , Savannah Jacklin , Keivan G. Stassun

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-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-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-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