相关论文: A close binary lens revealed by the microlensing e…

Gaia20fnr: A binary-lens microlensing event with full orbital motion revealed by four space telescopes

The microlensing event Gaia20fnr is a long-duration, non-caustic-crossing binary-lens event at high Galactic latitude. Triggered by a photometric rise detected by the Gaia space mission, the event was followed up with observations from…

太阳与恒星天体物理 · 物理学 2026-01-27 M. Wicker , Ł. Wyrzykowski , M. Hundertmark , K. A. Rybicki , P. Zieliński , E. Stonkutė , N. Ihanec , M. Maskoliūnas , E. Bachelet , K. Kruszyńska , M. Dominik , D. A. H. Buckley , I. Gezer , M. Gromadzki , P. Mikołajczyk , K. Kotysz , J. Majumdar , E. Pakštienė , J. Zdanavičius , V. Čepas , U. Jonauskaitė , V. Bozza , A. Cassan , R. Figuera Jaimes , M. Rabus , P. Rota , R. A. Street , Y. Tsapras , J. Wambsganss , S. Awiphan , S. M. Brincat , Z. Budzik , J. W. Davidson , R. Dymock , C. Galdies , V. Godunova , F. -J. Hambsch , M. Jabłonska , T. Kvernadze , M. Larma , M. Makowska , Y. Markus , J. Merc , O. Michniewicz , M. Motylinski , A. Popowicz , M. Radziwonowicz , D. Reichart , A. O. Simon , P. Trzcionkowski , M. Zejmo , S. Zola

An analysis of binary microlensing event OGLE-2015-BLG-0060

We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up…

地球与行星天体物理 · 物理学 2019-06-07 Y. Tsapras , A. Cassan , C. Ranc , E. Bachelet , R. Street , A. Udalski , M. Hundertmark , V. Bozza , J. P. Beaulieu , J. B. Marquette , E. Euteneuer , The RoboNet team , : , D. M. Bramich , M. Dominik , R. Figuera Jaimes , K. Horne , S. Mao , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J. Wambsganss , The OGLE collaboration , : , P. Mróz , M. K. Szymański , I. Soszyński , J. Skowron , P. Pietrukowicz , S. Kozłowski , R. Poleski , K. Ulaczyk , M. Pawlak , The MiNDSTEp collaboration , : , U. G. Jørgensen , J. Skottfelt , A. Popovas , S. Ciceri , H. Korhonen , M. Kuffmeier , D. F. Evans , N. Peixinho , T. C. Hinse , M. J. Burgdorf , J. Southworth , R. Tronsgaard , E. Kerins , M. I. Andersen , S. Rahvar , Y. Wang , O. Wertz , M. Rabus , S. Calchi Novati , G. D'Ago , G. Scarpetta , L. Mancini , The MOA collaboration , : , F. Abe , Y. Asakura , 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 , Y. Muraki , S. Miyazaki , M. Nagakane , K. Ohnishi , N. Rattenbury , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , A. Yonehara

Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye

Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct…

太阳与恒星天体物理 · 物理学 2020-01-22 Łukasz Wyrzykowski , P. Mróz , K. A. Rybicki , M. Gromadzki , Z. Kołaczkowski , M. Zieliński , P. Zieliński , N. Britavskiy , A. Gomboc , K. Sokolovsky , S. T. Hodgkin , L. Abe , G. F. Aldi , A. AlMannaei , G. Altavilla , A. Al Qasim , G. C. Anupama , S. Awiphan , E. Bachelet , V. Bakıs , S. Baker , S. Bartlett , P. Bendjoya , K. Benson , I. F. Bikmaev , G. Birenbaum , N. Blagorodnova , S. Blanco-Cuaresma , S. Boeva , A. Z. Bonanos , V. Bozza , D. M. Bramich , I. Bruni , R. A. Burenin , U. Burgaz , T. Butterley , H. E. Caines , D. B. Caton , S. Calchi Novati , J. M. Carrasco , A. Cassan , V. Cepas , M. Cropper , M. Chruślińska , G. Clementini , A. Clerici , D. Conti , M. Conti , S. Cross , F. Cusano , G. Damljanovic , A. Dapergolas , G. D'Ago , J. H. J. de Bruijne , M. Dennefeld , V. S. Dhillon , M. Dominik , J. Dziedzic , O. Ereceantalya , M. V. Eselevich , H. Esenoglu , L. Eyer , R. Figuera Jaimes , S. J. Fossey , A. I. Galeev , S. A. Grebenev , A. C. Gupta , A. G. Gutaev , N. Hallakoun , A. Hamanowicz , C. Han , B. Handzlik , J. B. Haislip , L. Hanlon , L. K. Hardy , D. L. Harrison , H. J. van Heerden , V. L. Hoette , K. Horne , R. Hudec , M. Hundertmark , N. Ihanec , E. N. Irtuganov , R. Itoh , P. Iwanek , M. D. Jovanovic , R. Janulis , M. Jelínek , E. Jensen , Z. Kaczmarek , D. Katz , I. M. Khamitov , Y. Kilic , J. Klencki , U. Kolb , G. Kopacki , V. V. Kouprianov , K. Kruszyńska , S. Kurowski , G. Latev , C-H. Lee , S. Leonini , G. Leto , F. Lewis , Z. Li , A. Liakos , S. P. Littlefair , J. Lu , C. J. Manser , S. Mao , D. Maoz , A. Martin-Carrillo , J. P. Marais , M. Maskoliūnas , J. R. Maund , P. J. Meintjes , S. S. Melnikov , K. Ment , P. Mikołajczyk , M. Morrell , N. Mowlavi , D. Moździerski , D. Murphy , S. Nazarov , H. Netzel , R. Nesci , C. -C. Ngeow , A. J. Norton , E. O. Ofek , E. Pakstienė , L. Palaversa , A. Pandey , E. Paraskeva , M. Pawlak , M. T. Penny , B. E. Penprase , A. Piascik , J. L. Prieto , J. K. T. Qvam , C. Ranc , A. Rebassa-Mansergas , D. E. Reichart , P. Reig , L. Rhodes , J. -P. Rivet , G. Rixon , D. Roberts , P. Rosi , D. M. Russell , R. Zanmar Sanchez , G. Scarpetta , G. Seabroke , B. J. Shappee , R. Schmidt , Y. Shvartzvald , M. Sitek , J. Skowron , M. Śniegowska , C. Snodgrass , P. S. Soares , B. van Soelen , Z. T. Spetsieri , A. Stankeviciūtė , I. A. Steele , R. A. Street , J. Strobl , E. Strubble , H. Szegedi , L. M. Tinjaca Ramirez , L. Tomasella , Y. Tsapras , D. Vernet , S. Villanueva , O. Vince , J. Wambsganss , I. P. van der Westhuizen , K. Wiersema , D. Wium , R. W. Wilson , A. Yoldas , R. Ya. Zhuchkov , D. G. Zhukov , J. Zdanavicius , S. Zoła , A. Zubareva

OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event

In this work, we present the analysis of the binary microlensing event OGLE-2018-BLG-0022 that is detected toward the Galactic bulge field. The dense and continuous coverage with the high-quality photometry data from ground-based…

太阳与恒星天体物理 · 物理学 2019-05-15 Cheongho Han , Ian A. Bond , Andrzej Udalski , Sebastiano Calchi Novati , Andrew Gould , Valerio Bozza , Yuki Hirao , Arnaud Cassan , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Youn Kil Jung , Doeon Kim , Woong-Tae Kim Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Weicheng Zang , Fumio Abe , Richard Barry , David P. Bennett , 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 , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Charles A. Beichman , Geoffery Bryden , Sean Carey , B. Scott Gaudi , Calen B. Henderson

MOA-2022-BLG-249Lb: Nearby microlensing super-Earth planet detected from high-cadence surveys

We investigate the data collected by the high-cadence microlensing surveys during the 2022 season in search for planetary signals appearing in the light curves of microlensing events. From this search, we find that the lensing event…

地球与行星天体物理 · 物理学 2023-06-14 Cheongho Han , Andrew Gould , Youn Kil Jung , Ian A. Bond , Weicheng Zang , Sun-Ju Chung , Michael D. Albrow , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Hongjing Yang , Jennifer C. Yee , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Shude Mao , Wei Zhu , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Yasushi Muraki , Arisa Okamura , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Taiga Toda , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita

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

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

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

OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects

We undertake a project to reexamine microlensing data gathered from high-cadence surveys. The aim of the project is to reinvestigate lensing events with light curves exhibiting intricate anomaly features associated with caustics, yet…

太阳与恒星天体物理 · 物理学 2024-04-10 Cheongho Han , Andrzej Udalski , Ian A. Bond , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Hyoun-Woo Kim , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita

Repeating microlensing events in the OGLE data

Microlensing events are usually selected among single-peaked non-repeating light curves in order to avoid confusion with variable stars. However, a microlensing event may exhibit a second microlensing brightening episode when the source…

天体物理学 · 物理学 2009-11-13 J. Skowron , L. Wyrzykowski , S. Mao , M. Jaroszynski

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

KMT-2019-BLG-0797: binary-lensing event occurring on a binary stellar system

We analyze the microlensing event KMT-2019-BLG-0797. The light curve of the event exhibits two anomalous features from a single-lens single-source model, and we aim to reveal the nature of the anomaly. It is found that a model with two…

太阳与恒星天体物理 · 物理学 2021-05-26 Cheongho Han , Chung-Uk Lee , Yoon-Hyun Ryu , Doeon Kim , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Youn Kil Jung , Hyoun-Woo Kim , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge

Single-lens mass measurement in the high-magnification microlensing event Gaia19bld located in the Galactic disc

We present the photometric analysis of Gaia19bld, a high-magnification ($A\approx60$) microlensing event located in the southern Galactic plane, which exhibited finite source and microlensing parallax effects. Due to a prompt detection by…

星系天体物理 · 物理学 2022-01-05 K. A. Rybicki , Ł. Wyrzykowski , E. Bachelet , A. Cassan , P. Zieliński , A. Gould , S. Calchi Novati , J. C. Yee , Y. -H. Ryu , M. Gromadzki , P. Mikołajczyk , N. Ihanec , K. Kruszyńska , F. -J. Hambsch , S. Zoła , S. J. Fossey , S. Awiphan , N. Nakharutai , F. Lewis , F. Olivares E. , S. Hodgkin , A. Delgado , E. Breedt , D. L. Harrison , M. vanLeeuwen , G. Rixon , T. Wevers , A. Yoldas , A. Udalski , M. K. Szymański , I. Soszyński , P. Pietrukowicz , S. Kozłowski , J. Skowron , R. Poleski , K. Ulaczyk , P. Mróz , P. Iwanek , M. Wrona , R. A. Street , Y. Tsapras , M. Hundertmark , M. Dominik , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. Henderson , Y. Shvartzvald , W. Zang , W. Zhu , G. W. Christie , J. Green , S. Hennerley , J. McCormick , L. A. G. Monard , T. Natusch , R. W. Pogge , I. Gezer , A. Gurgul , Z. Kaczmarek , M. Konacki , M. C. Lam , M. Maskoliunas , E. Pakstiene , M. Ratajczak , A. Stankeviciute , J. Zdanavicius , O. Ziółkowska

OGLE-2014-BLG-0221Lb: A Jupiter Mass Ratio Companion Orbiting either a Late-Type Star or a Stellar Remnant

We present the analysis of microlensing event OGLE-2014-BLG-0221, a planetary candidate event discovered in 2014. The photometric light curve is best described by a binary-lens single-source model. Our light curve modeling finds two…

地球与行星天体物理 · 物理学 2023-10-23 Rintaro Kirikawa , Takahiro Sumi , David P. Bennett , Daisuke Suzuki , Naoki Koshimoto , Shota Miyazaki , Ian A. Bond , Andrzej Udalski , Nicholas J. Rattenbury , Fumio Abe , Richard Barry , Aparna Bhattacharya , Hirosane Fujii , Akihiko Fukui , Ryusei Hamada , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Yutaka Matsubara , Yasushi Muraki , Greg Olmschenk , Clément Ranc , Yuki K. Satoh , Mio Tomoyoshi , Paul . J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita , Przemek Mróz , Radosław Poleski , Jan Skowron , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk

Gaia21blx: Complete resolution of a binary microlensing event in the Galactic disk

Context. Gravitational microlensing is a method that is used to discover planet-hosting systems at distances of several kiloparsec in the Galactic disk and bulge. We present the analysis of a microlensing event reported by the Gaia…

太阳与恒星天体物理 · 物理学 2024-06-19 P. Rota , V. Bozza , M. Hundertmark , E. Bachelet , R. Street , Y. Tsapras , A. Cassan , M. Dominik , R. Figuera Jaimes , K. A. Rybicki , J. Wambsganss , L. Wyrzykowski , P. Zielinski , M. Bonavita , T. C. Hinse , U. G. Jorgensen , E. Khalouei , H. Korhonen , P. Longa-Pena , N. Peixinho , S. Rahvar , S. Sajadian , J. Skottfelt , C. Snodgrass , J. Tregolan-Reed

MOA-2015-BLG-337: A Planetary System with a Low-mass Brown Dwarf/Planetary Boundary Host, or a Brown Dwarf Binary

We report the discovery and the analysis of the short timescale binary-lens microlensing event, MOA-2015-BLG-337. The lens system could be a planetary system with a very low mass host, around the brown dwarf/planetary mass boundary, or a…

地球与行星天体物理 · 物理学 2018-09-05 S. Miyazaki , T. Sumi , D. P. Bennett , A. Gould , A. Udalski , I. A. Bond , N. Koshimoto , M. Nagakane , N. Rattenbury , F. Abe , A. Bhattacharya , R. Barry , M. Donachie , A. Fukui , Y. Hirao , Y. Itow , K. Kawasaki , M. C. Li , C. H. Ling , Y. Matsubara , T. Matsuo , Y. Muraki , K. Ohnishi , C. Ranc , T. Saito , A. Sharan , H. Shibai , H. Suematsu , D. Suzuki , D. J. Sullivan , P. J. Tristram , T. Yamada , A. Yonehara , S. owski , P. Mr'oz , M. Pawlak , R. Poleski , P. Pietrukowicz , J. Skowron , I. Soszy'nski , M. K. Szyma'nski , K. Ulaczyk , M. D. Albrow , S. -J. Chung , C. Han , Y. K. Jung , K. -H. Hwang , 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 , C. -U. Lee , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge

The First Planetary Microlensing Event with Two Microlensed Source Stars

We present the analysis of microlensing event MOA-2010-BLG-117, and show that the light curve can only be explained by the gravitational lensing of a binary source star system by a star with a Jupiter mass ratio planet. It was necessary to…

地球与行星天体物理 · 物理学 2018-03-23 D. P. Bennett , A. Udalski , C. Han , I. A. Bond , J. -P. Beaulieu , J. Skowron , B. S. Gaudi , N. Koshimoto , F. Abe , Y. Asakura , R. K. Barry , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Hirao , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , C. Ranc , N. J. Rattenbury , M. K. Rosenthal , To. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , A. Yonehara , M. K. Szymanski , R. Poleski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , D. DePoy , A. Gould , R. W. Pogge , J. C. Yee , M. D. Albrow , E. Bachelet , V. Batista , R. Bowens-Rubin , S. Brillant , J. A. R. Caldwell , A. Cole , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , K. Horne , M. Hundertmark , N. Kains , S. R. Kane , J. -B. Marquette , J. Menzies , K. R. Pollard , C. Ranc , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub

OGLE-2015-BLG-1771Lb: A Microlens Planet Orbiting an Ultracool Dwarf?

We report the discovery and the analysis of the short (tE < 5 days) planetary microlensing event, OGLE-2015-BLG-1771. The event was discovered by the Optical Gravitational Lensing Experiment (OGLE), and the planetary anomaly (at I ~ 19) was…

地球与行星天体物理 · 物理学 2020-03-04 Xiangyu Zhang , Weicheng Zang , Andrzej Udalski , Andrew Gould , Yoon-Hyun Ryu , Tianshu Wang , Hongjing Yang , Shude Mao , Przemek Mróz , Jan Skowron , Radoslaw Poleski , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Wei Zhu , 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

Lens parameters for Gaia18cbf -- a long gravitational microlensing event in the Galactic plane

Context: The timescale of a microlensing event scales as a square root of a lens mass. Therefore, long-lasting events are important candidates for massive lenses, including black holes. Aims: Here we present the analysis of the Gaia18cbf…

太阳与恒星天体物理 · 物理学 2022-06-15 Katarzyna Kruszyńska , Ł. Wyrzykowski , K. A. Rybicki , M. Maskoliūnas , E. Bachelet , N. Rattenbury , P. Mróz , P. Zieliński , K. Howil , Z. Kaczmarek , S. T. Hodgkin , N. Ihanec , I. Gezer , M. Gromadzki , P. Mikołajczyk , A. Stankevičiūtė , V. Čepas , E. Pakštienė , K. Šiškauskaitė , J. Zdanavičius , V. Bozza , M. Dominik , R. Figuera Jaimes , A. Fukui , M. Hundertmark , N. Narita , R. Street , Y. Tsapras , M. Bronikowski , M. Jabłońska , A. Jabłonowska , O. Ziółkowska

Bayesian Approach for Determining Microlens System Properties with High-Angular-Resolution Follow-up Imaging

We present the details of the Bayesian analysis on the planetary microlensing event MOA-2016-BLG-227, whose excess flux is likely due to a source/lens companion or an unrelated ambient star, as well as of the assumed prior distributions.…

地球与行星天体物理 · 物理学 2020-05-27 Naoki Koshimoto , David P. Bennett , Daisuke Suzuki