相关论文: OGLE-2013-BLG-0578L: Microlensing Binary Composed …

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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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-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…

地球与行星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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

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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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

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…

太阳与恒星天体物理 · 物理学 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

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…

太阳与恒星天体物理 · 物理学 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

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…

天体物理仪器与方法 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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

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…

地球与行星天体物理 · 物理学 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

Candidate Microlensing Brown Dwarfs in Binary Lens Systems from the 2023--2025 Observing Seasons

We present detailed light-curve analyses of ten binary-lens microlensing events observed during the 2023--2025 seasons and selected as candidates for hosting brown-dwarf companions. The sample includes OGLE-2023-BLG-0249, KMT-2023-BLG-1246,…

太阳与恒星天体物理 · 物理学 2026-04-10 Cheongho Han , Andrzej Udalski , Ian A. Bond , Chung-Uk Lee , 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. 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 , David P. Bennett , Aparna Bhattacharya , Ryusei Hamada , Yuki Hirao , Asahi Idei , Stela Ishitani Silva , Shuma Makida , Shota Miyazaki , Yasushi Muraki , Tutumi Nagai , Togo Nagano , Seiya Nakayama , Mayu Nishio , Kansuke Nunota , Ryo Ogawa , Ryunosuke Oishi , Yui Okumoto , 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-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…

太阳与恒星天体物理 · 物理学 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-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…

太阳与恒星天体物理 · 物理学 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

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…

地球与行星天体物理 · 物理学 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

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…

天体物理学 · 物理学 2007-05-23 M. Jaroszynski

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…

太阳与恒星天体物理 · 物理学 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