Related papers: OGLE-2015-BLG-0479LA,B: Binary Gravitational Micro…

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

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

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

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

Determining the Physical Lens Parameters of the Binary Gravitational Microlensing Event MOA-2009-BLG-016

We report the result of the analysis of the light curve of the microlensing event MOA-2009-BLG-016. The light curve is characterized by a short-duration anomaly near the peak and an overall asymmetry. We find that the peak anomaly is due to…

Solar and Stellar Astrophysics · Physics 2015-05-19 K. -H. Hwang , C. Han , I. A. Bond , N. Miyake , F. Abe , D. P. Bennett , C. S. Botzler , 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 , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. Rattenbury , To. Saito , T. Sako , L. Skuljan , D. J. Sullivan , T. Sumi , D. Suzuki , W. L. Sweatman , P. , J. Tristram , K. Wada , P. C. M. Yock D. L. , Depoy , B. S. Gaudi , A. Gould , C. -U. Lee , R. W. Pogge

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-2014-BLG-0289: Precise Characterization of a Quintuple-Peak Gravitational Microlensing Event

We present the analysis of the binary-microlensing event OGLE-2014-BLG-0289. The event light curve exhibits very unusual five peaks where four peaks were produced by caustic crossings and the other peak was produced by a cusp approach. It…

Solar and Stellar Astrophysics · Physics 2018-02-07 A. Udalski , C. Han , V. Bozza , A. Gould , I. A. Bond , P. Mróz , J. Skowron , Ł. Wyrzykowski , M. K. Szymański , I. Soszyński , K. Ulaczyk , R. Poleski , P. Pietrukowicz , S. Kozłowski , 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 , K. Masuda , 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 , E. Bachelet , D. M. Bramich , G. DÁgo , M. Dominik , R. Figuera Jaimes , K. Horne , M. Hundertmark , N. Kains , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J. Wambsganss , R. W. Pogge , Y. K. Jung , I. -G. Shin , J. C. Yee , W. -T. Kim , C. Beichman , S. Carey , S. Calchi Novati , W. Zhu

OGLE-2018-BLG-0799Lb: a $q \sim 2.7 \times 10^{-3}$ Planet with Spitzer Parallax

We report the discovery and analysis of a planet in the microlensing event OGLE-2018-BLG-0799. The planetary signal was observed by several ground-based telescopes, and the planet-host mass ratio is $q = (2.65 \pm 0.16) \times 10^{-3}$. The…

Earth and Planetary Astrophysics · Physics 2022-07-21 Weicheng Zang , Yossi Shvartzvald , Andrzej Udalski , Jennifer C. Yee , Chung-Uk Lee , Takahiro Sumi , Xiangyu Zhang , Hongjing Yang , Shude Mao , Sebastiano Calchi Novati , Andrew Gould , Wei Zhu , Charles A. Beichman , Geoffery Bryden , Sean Carey , B. Scott Gaudi , Calen B. Henderson , Przemek Mróz , Jan Skowron , Radoslaw Poleski , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Ian A. Bond , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Hikaru Shoji , Daisuke Suzuki , Yuzuru Tanaka , Paul J. Tristram , Tsubasa Yamawaki , Atsunori Yonehara , Etienne Bachelet , Markus P. G. Hundertmark , R. Figuera Jaimes , Dan Maoz , Matthew T. Penny , Rachel A. Street , Yiannis Tsapras

OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis

We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two distinct peaks with perturbations near both peaks. We find…

Solar and Stellar Astrophysics · Physics 2015-05-19 Y. -H. Ryu , C. Han , K. -H. Hwang , R. Street , A. Udalski , T. Sumi , A. Fukui , J. -P. Beaulieu , A. Gould , M. Dominik , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , 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 , N. Miyake , Y. Muraki , K. Nishimoto , K. Ohnishi , 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 , O. Szewczyk , Ł. Wyrzykowski , K. Ulaczyk , M. Bos , G. W. Christie , D. L. Depoy , A. Gal-Yam , B. S. Gaudi , S. Kaspi , C. -U. Lee , D. Maoz , J. McCormick , B. Monard , D. Moorhouse , R. W. Pogge , D. Polishook , Y. Shvartzvald , A. Shporer , G. Thornley , J. C. Yee , M. D. Albrow , V. Batista , S. Brillant , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , P. Fouqué , J. Greenhill , J. Menzies , A. Allan , D. M. Bramich , P. Browne , K. Horne , N. Kains , C. Snodgrass , I. Steele , Y. Tsapras , V. Bozza , M. J. Burgdorf , S. Calchi Novati , S. Dreizler , F. Finet , M. Glitrup , F. Grundahl , K. Harpsøe , F. V. Hessman , T. C. Hinse , M. Hundertmark , U. G. Jørgensen , C. Liebig , G. Maier , L. Mancini , M. Mathiasen , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Surdej , J. Southworth , J. Wambsganss , F. Zimmer

OGLE-2016-BLG-0613LABb: A Microlensing Planet in a Binary System

We present the analysis of OGLE-2016-BLG-0613, for which the lensing light curve appears to be that of a typical binary-lens event with two caustic spikes but with a discontinuous feature on the trough between the spikes. We find that the…

Earth and Planetary Astrophysics · Physics 2017-11-29 C. Han , A. Udalski , A. Gould , C. -U. Lee , Y. Shvartzvald , W. C. Zang , S. Mao , S. Kozłowski , M. D. Albrow , S. -J. Chung , K. -H. Hwang , Y. K. Jung , D. Kim , H. -W. Kim , Y. -H. Ryu , I. -G. Shin , J. C. Yee , W. Zhu , S. -M. Cha , S. -L. Kim , D. -J. Kim , Y. Lee , B. -G. Park , J. Skowron , P. Mróz , P. Pietrukowicz , R. Poleski , M. K. Szymański , I. Soszyński , K. Ulaczyk , M. Pawlak C. Beichman , G. Bryden , S. Calchi Novati , B. S. Gaudi , C. B. Henderson , S. B. Howell , S. Jacklin , M. T. Penny , P. Fouqué , T. S. Wang

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-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in Galactic Bulge

OGLE-2016-BLG-1093 is a planetary microlensing event that is part of the statistical $Spitzer$ microlens parallax sample. The precise measurement of the microlens parallax effect for this event, combined with the measurement of finite…

Earth and Planetary Astrophysics · Physics 2022-05-18 In-Gu Shin , Jennifer C. Yee , Kyu-Ha Hwang , Andrew Gould , Andrzej Udalski , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Youn Kil Jung , Hyoun Woo Kim , Yoon-Hyun Ryu , Yossi Shvartzvald , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Charles A. Beichman , Geoffery Bryden , Sebastiano Calchi Novati , Sean Carey , B. Scott Gaudi , Calen B. Henderson , Wei Zhu , Fumio Abe , Richard K. Barry , David P. Bennett , Aparna Bhattacharya , Hirosane Fujii , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Iona Kondo , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Greg Olmschenk , Arisa Okamura , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Stela Ishitani Silva , Takahiro Sumi , Daisuke Suzuki , Taiga Toda , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama

KMT-2018-BLG-0029Lb and OGLE-2019-BLG-0960Lb: Mass Measurements for Two Super-Earth Microlensing Planets

KMT-2018-BLG-0029Lb and OGLE-2019-BLG-0960Lb were the lowest mass-ratio microlensing planets at the time of discovery. For both events, microlensing parallax measurements from the Spitzer Space Telescope implied lens systems that were more…

Earth and Planetary Astrophysics · Physics 2025-08-27 Keming Zhang , Sean K. Terry , Joshua S. Bloom , B. Scott Gaudi , Jessica R. Lu

The Many Possible Interpretations of Microlensing Event OGLE-2002-BLG-055

Microlensing event OGLE-2002-BLG-055 is characterized by a smooth, slightly asymmetric single-lens curve with an isolated, secure data point that is ~0.6 magnitudes brighter than neighboring points separated by a few days. It was previously…

Astrophysics · Physics 2008-11-26 B. Scott Gaudi , Cheongho Han

Spitzer Observations of OGLE-2015-BLG-1212 Reveal a New Path to Breaking Strong Microlens Degeneracies

Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively breaks a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered. Only eight viable models survive…

Earth and Planetary Astrophysics · Physics 2016-04-06 V. Bozza , Y. Shvartzvald , A. Udalski , S. Calchi Novati , I. A. Bond , C. Han , M. Hundertmark , R. Poleski , M. Pawlak , M. K. Szymański , J. Skowron , P. Mróz , S. Kozłowski , Ł. Wyrzykowski , P. Pietrukowicz , I. Soszyński , K. Ulaczyk , C. Beichman , G. Bryden , S. Carey , M. Fausnaugh , B. S. Gaudi , A. Gould , C. B. Henderson , R. W. Pogge , B. Wibking , J. C. Yee , W. Zhu , F. Abe , Y. Asakura , R. K. Barry , D. P. Bennett , A. Bhattacharya , M. Donachie , M. Freeman , A. Fukui , Y. Hirao , K. Inayama , Y. Itow , N. Koshimoto , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , T. Nishioka , K. Ohnishi , H. Oyokawa , N. Rattenbury , T. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , Y. Wakiyama , A. Yonehara , J. -Y. Choi , H. Park , Y. K. Jung , I. -G. Shin , M. D. Albrow , B. -G. Park , S. -L. Kim , C. -U. Lee , S. -M. Cha , D. -J. Kim , Y. Lee , M. Dominik , U. G. Jørgensen , M. I. Andersen , D. M. Bramich , M. J. Burgdorf , S. Ciceri , G. D'Ago , D. F. Evans , R. Figuera Jaimes , S. -H. Gu , T. C. Hinse , N. Kains , E. Kerins , H. Korhonen , M. Kuffmeier , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , R. T. Rasmussen , G. Scarpetta , J. Skottfelt , C. Snodgrass , J. Southworth , J. Surdej , E. Unda-Sanzana , C. von Essen , Y. -B. Wang , O. Wertz , D. Maoz , M. Friedmann , S. Kaspi

Characterizing Lenses and Lensed Stars of High-Magnification Single-lens Gravitational Microlensing Events With Lenses Passing Over Source Stars

We present the analysis of the light curves of 9 high-magnification single-lens gravitational microlensing events with lenses passing over source stars, including OGLE-2004-BLG-254, MOA-2007-BLG-176, MOA-2007-BLG-233/OGLE-2007-BLG-302,…

Solar and Stellar Astrophysics · Physics 2015-06-03 J. -Y. Choi , I. -G. Shin , S. -Y. Park , C. Han , A. Gould , T. Sumi , A. Udalski , J. -P. Beaulieu , R. Street , M. Dominik , W. Allen , L. A. Almeida , M. Bos , G. W. Christie , D. L. Depoy , S. Dong , J. Drummond , A. Gal-Yam , B. S. Gaudi , C. B. Henderson , L. -W. Hung , F. Jablonski , J. Janczak , C. -U. Lee , F. Mallia , A. Maury , J. McCormick , D. McGregor , L. A. G. Monard , D. Moorhouse , J. A. Muñoz , T. Natusch , C. Nelson , B. -G. Park , R. W. Pogge , T. -G. "TG" Tan , G. Thornley , J. C. Yee , F. Abe , E. Barnard , J. Baudry , 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 , K. Suzuki , W. L. Sweatman , S. Takino , 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 , E. Bachelet , V. Batista , C. S. Bennett , R. Bowens-Rubin , S. Brillant , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , S. R. Kane , J. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub , A. Allan , D. M. Bramich , P. Browne , N. Clay , S. Fraser , K. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , Y. Tsapras , K. A. Alsubai , V. Bozza , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , M. Glitrup , F. Grundahl , S. Hardis , K. Harpsøe , T. C. Hinse , M. Hundertmark , U. G. Jørgensen , 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-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-2013-BLG-1761Lb: A Massive Planet Around an M/K Dwarf

We report the discovery and the analysis of the planetary microlensing event, OGLE-2013-BLG-1761. There are some degenerate solutions in this event because the planetary anomaly is only sparsely sampled. But the detailed light curve…

Earth and Planetary Astrophysics · Physics 2017-06-21 Y. Hirao , A. Udalski , T. Sumi , D. P. Bennett , I. A. Bond , N. J. Rattenbury , D. Suzuki , N. Koshimoto , F. Abe , Y. Asakura , R. K. Barry , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , T. Matsuo , Y. Muraki , M. Nagakane , K. Ohnishi , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , R. Poleski , J. Skowron , P. Mróz , M. K. Szymański , S. Kozłowski , P. Pietrukowicz , I. Soszyński , Ł. Wyrzykowski , K. Ulaczyk

First simultaneous microlensing observations by two space telescopes: $Spitzer$ & $Swift$ reveal a brown dwarf in event OGLE-2015-BLG-1319

Simultaneous observations of microlensing events from multiple locations allow for the breaking of degeneracies between the physical properties of the lensing system, specifically by exploring different regions of the lens plane and by…

Earth and Planetary Astrophysics · Physics 2016-11-15 Y. Shvartzvald , Z. Li , A. Udalski , A. Gould , T. Sumi , R. A. Street , S. Calchi Novati , M. Hundertmark , V. Bozza , C. Beichman , G. Bryden , S. Carey , J. Drummond , M. Fausnaugh , B. S. Gaudi , C. B. Henderson , T. G. Tan , B. Wibking , R. W. Pogge , J. C. Yee , W. Zhu , Y. Tsapras , 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 , R. Poleski , M. Pawlak , M. K. Szymański , J. Skowron , P. Mróz , S. Kozłowski , Ł. Wyrzykowski , P. Pietrukowicz , I. Soszyński , K. Ulaczyk , F. Abe , Y. Asakura , R. K. Barry , D. P. Bennett , A. Bhattacharya , I. A. Bond , M. Freeman , Y. Hirao , Y. Itow , N. Koshimoto , M. C. A. Li , C. H. Ling , K. Masuda , A. Fukui , Y. Matsubara , Y. Muraki , M. Nagakane , T. Nishioka , K. Ohnishi , H. Oyokawa , N. J. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , A. Yonehara , U. G. Jørgensen , M. J. Burgdorf , S. Ciceri , 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 , N. Peixinho , P. Verma , B. Sbarufatti , J. A. Kennea , N. Gehrels

Optical Gravitational Lensing Experiment. OGLE-1999-BUL-19: The First Multi-Peak Parallax Event

We describe a highly unusual microlensing event, OGLE-1999-BUL-19, which exhibits multiple peaks in its light curve. The Einstein radius crossing time for this event is approximately one year, which is unusually long. We show that the…

Astrophysics · Physics 2009-11-07 M. C. Smith , S. Mao , P. Wozniak , A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , K. Zebrun