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200 papers
We present the analysis of MOA-2007-BLG-197Lb, the first brown dwarf companion to a Sun-like star detected through gravitational microlensing. The event was alerted and followed-up photometrically by a network of telescopes from the PLANET,…
Earth and Planetary Astrophysics · Physics
2015-08-19
C. Ranc , A. Cassan , M. D. Albrow , D. Kubas , I. A. Bond , V. Batista , J. -P. Beaulieu , D. P. Bennett , M. Dominik , Subo Dong , P. Fouqué , A. Gould , J. Greenhill , U. G. Jørgensen , N. Kains , J. Menzies , T. Sumi , E. Bachelet , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , B. S. Gaudi , C. Han , M. Hundertmark , K. Horne , S. R. Kane , C. -U. Lee , J. -B. Marquette , B. -G. Park , K. R. Pollard , K. C. Sahu , R. Street , Y. Tsapras , J. Wambsganss , A. Williams , M. Zub , F. Abe , A. Fukui , Y. Itow , K. Masuda , Y. Matsubara , Y. Muraki , K. Ohnishi , N. Rattenbury , To. Saito , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock , A. Yonehara
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…
Solar and Stellar Astrophysics · Physics
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
Building on previous works to construct a homogeneous sample of brown dwarfs in binary systems, we investigate microlensing events detected by the Korea Microlensing Telescope Network (KMTNet) survey during the 2022 and 2023 seasons. Given…
Solar and Stellar Astrophysics · Physics
2024-08-22
Cheongho Han , Ian A. Bond , Andrzej Udalski , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , 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 , Fumio Abe , Ken Bando , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Shunya Hamada , Naoto Hamasaki , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , 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 , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita , 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
We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planetary systems and thus the discovery is important for…
Earth and Planetary Astrophysics · Physics
2015-06-23
J. Skowron , I. -G. Shin , A. Udalski , C. Han , T. Sumi , Y. Shvartzvald , A. Gould , D. Dominis-Prester , R. A. Street , U. G. Jørgensen , D. P. Bennett , V. Bozza , M. K. Szymański , M. Kubiak , G. Pietrzyński , I. Soszyński , R. Poleski , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , Ł. Wyrzykowski , F. Abe , A. Bhattacharya , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , C. H. Ling , N. Koshimoto , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , L. C. Philpott , N. Rattenbury , T. Saito , D. J. Sullivan , D. Suzuki , P. J. Tristram , P. C. M. Yock , D. Maoz , S. Kaspi , M. Friedman , L. A. Almeida , V. Batista , G. Christie , J. -Y. Choi , D. L. DePoy , B. S. Gaudi , C. Henderson , K. -H. Hwang , F. Jablonski , Y. K. Jung , C. -U. Lee , J. McCormick , T. Natusch , H. Ngan , H. Park , R. W. Pogge , J. Yee , M. D. Albrow , E. Bachelet , J. -P. Beaulieu , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , J. Donatowicz , P. Fouqué , J. Greenhill , N. Kains , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. R. Pollard , C. Ranc , K. C. Sahu , J. Wambsganss , A. Williams , D. Wouters , Y. Tsapras , D. M. Bramich , K. Horne , M. Hundertmark , C. Snodgrass , I. A. Steele , K. A. Alsubai , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , M. Dominik , S. Dreizler , X. -S. Fang , C. -H. Gu , Hardis , K. Harpsøe , F. V. Hessman , T. C. Hinse , A. Hornstrup , J. Jessen-Hansen , E. Kerins , C. Liebig , M. Lund , M. Lundkvist , L. Mancini , M. Mathiasen , M. T. Penny , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Southworth , J. Surdej , J. Tregloan-Reed , O. Wertz
Because Spitzer is an Earth-trailing orbit, losing about 0.1 AU/yr, it is excellently located to perform microlens parallax observations toward the Magellanic Clouds (LMC/SMC) and the Galactic bulge. These yield the so-called ``projected…
We report the discovery and characterization of a planetary companion in the microlensing event KMT-2016-BLG-1337, which was produced by a binary system of low-mass stars. The light curve of the event exhibits a short-term anomaly…
Earth and Planetary Astrophysics · Physics
2026-02-16
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 , Doeon Kim , Dong-Jin Kim , Sang-Mok Cha , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Fumio Abe , David P. Bennett , Aparna Bhattacharya , Ryusei Hamada , Yuki Hirao , Asahi Idei , Stela Ishitani Silva , 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 , 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
Short-timescale microlensing events are likely to be produced by substellar brown dwarfs (BDs), but it is difficult to securely identify BD lenses based on only event timescales $t_{\rm E}$ because short-timescale events can also be…
Solar and Stellar Astrophysics · Physics
2020-03-11
Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Andrew Gould , Ian A. Bond , Valerio Bozza , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , M. James Jee , Doeon Kim , 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 , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yoshitaka Itow , Yuki Hirao , Yuhei Kamei , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Masayuki Nagakane , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Hikaru Shoji , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Takeharu Yamakawa , Tsubasa Yamawaki , Atsunori Yonehara
We present an analysis of the anomalous microlensing event, MOA-2010-BLG-073, announced by the Microlensing Observations in Astrophysics survey on 2010-03-18. This event was remarkable because the source was previously known to be…
Earth and Planetary Astrophysics · Physics
2015-06-12
R. A. Street , J. -Y. Choi , Y. Tsapras , C. Han , K. Furusawa , M. Hundertmark , A. Gould , T. Sumi , I. A. Bond , D. Wouters , R. Zellem , A. Udalski , C. Snodgrass , K. Horne , M. Dominik , P. Browne , N. Kains , D. M. Bramich , D. Bajek , I. A. Steele , S. Ipatov , F. Abe , D. P. Bennett , C. S. Botzler , P. Chote , M. Freeman , A. Fukui , P. Harris , Y. Itow , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , T. Nagayama , S. Nishimaya , K. Ohnishi , N. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , R. Poleski , K. Ulaczyk , L. Wyrzykowski , J. Yee , S. Dong , I. -G. Shin , C. -U. Lee , J. Skowron , L. Andrade De Almeida , D. L. DePoy , B. S. Gaudi , L. -W. Hung , F. Jablonski , S. Kaspi , N. Klein , K. -H. Hwang , J. -R. Koo , D. Maoz , J. A. Munoz , R. W. Pogge , D. Polishhook , A. Shporer , J. McCormick , G. Christie , T. Natusch , B. Allen , J. Drummond , D. Moorhouse , G. Thornley , M. Knowler , M. Bos , G. Bolt , J. -P. Beaulieu , M. D. Albrow , V. Batista , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , E. Bachelet , J. Greenhill , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub , K. A. Alsubai , V. Bozza , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , S. Hardis , K. Harpsoe , F. Hessman , T. C. Hinse , U. G. Jorgensen , E. Kerins , C. Liebig , L. Mancini , M. Mathiasen , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , S. Schafer , F. Schonebeck , J. Southworth , J. Surdej
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
We report the mass and distance measurements of two single-lens events from the 2017 Spitzer microlensing campaign. The ground-based observations yield the detection of finite-source effects, and the microlens parallaxes are derived from…
Solar and Stellar Astrophysics · Physics
2020-03-04
Weicheng Zang , Yossi Shvartzvald , Tianshu Wang , Andrzej Udalski , Chung-Uk Lee , Takahiro Sumi , Jesper Skottfelt , Shun-Sheng Li , Shude Mao , Wei Zhu , Jennifer C. Yee , Sebastiano Calchi Novati , 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 , Etienne Bachelet , Grant Christie , Jonathan Green , Steve Hennerley , Dan Maoz , Tim Natusch , Richard W. Pogge , Rachel A. Street , Yiannis Tsapras , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , 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 be , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , 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 , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara , Martin Dominik , Markus Hundertmark , Uffe G. Jørgensen , Sohrab Rahvar , Sedighe Sajadian , Colin Snodgrass , Valerio Bozza , Martin J. Burgdorf , Daniel F. Evans , Roberto Figuera Jaimes , Yuri I. Fujii , Luigi Mancini , Penelope Longa-Peña , hristiane Helling , Nuno Peixinho , Markus Rabus , John Southworth , Eduardo Unda-Sanzana , Carolina von Essen
We present observations of the unusual microlensing event OGLE 2003-BLG-235/MOA 2003-BLG-53. In this event a short duration (~7 days) low amplitude deviation in the light curve due a single lens profile was observed in both the MOA and OGLE…
Astrophysics · Physics
2009-11-10
I. A. Bond , A. Udalski , M. Jaroszynski , N. J. Rattenbury , B. Paczynski , I. Soszynski , L. Wyrzykowski , M. K. Szymanski , M. Kubiak , O. Szewczyk , K. Zebrun , G. Pietrzynski , F. Abe , D. P. Bennett , S. Eguchi , Y. Furuta , J. B. Hearnshaw , K. Kamiya , P. M. Kilmartin , Y. Kurata , K. Masuda , Y. Matsubara , Y. Muraki , S. Noda , K. Okajima , T. Sako , T. Sekiguchi , D. J. Sullivan , T. Sumi , P. J. Tristram , T. Yanagisawa , P. C. M. Yock
We present a comprehensive analysis of a planetary microlensing event OGLE-2015-BLG-1609. The planetary anomaly was detected by two survey telescopes, OGLE and MOA. Each of these surveys collected enough data over the planetary anomaly to…
Earth and Planetary Astrophysics · Physics
2025-06-18
M. J. Mróz , R. Poleski , A. Udalski , T. Sumi , Y. Tsapras , M. Hundertmark , P. Pietrukowicz , M. K. Szymański , J. Skowron , P. Mróz , M. Gromadzki , P. Iwanek , S. Kozłowski , M. Ratajczak , K. A. Rybicki , D. M. Skowron , I. Soszyński , K. Ulaczyk , M. Wrona , F. Abe , K. Bando , D. P. Bennett , A. Bhattacharya , I. A. Bond , A. Fukui , R. Hamada , S. Hamada , N. Hamasaki , Y. Hirao , S. Ishitani Silva , Y. Itow , N. Koshimoto , Y. Matsubara , S. Miyazaki , Y. Muraki , T. Nagai , K. Nunota , G. Olmschenk , C. Ranc , N. J. Rattenbury , Y. Satoh , D. Suzuki , S. K. Terry , P. J. Tristram , A. Vandorou , H. Yama , R. A. Street , E. Bachelet , M. Dominik , A. Cassan , R. Figuera Jaimes , K. Horne , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , U. G. Jørgensen , P. Longa-Peña , N. Peixinho , J. Skottfelt , J. Southworth , M. I. Andersen , V. Bozza , M. J. Burgdorf , G. D'Ago , T. C. Hinse , E. Kerins , H. Korhonen , M. Küffmeier , L. Mancini , M. Rabus , S. Rahvar
We inspect the microlensing data of the KMTNet survey collected during the 2018--2020 seasons in order to find lensing events produced by binaries with brown-dwarf companions. In order to pick out binary-lens events with candidate BD lens…
Solar and Stellar Astrophysics · Physics
2023-07-12
Cheongho Han , Youn Kil Jung , Doeon Kim , Andrew Gould , Valerio Bozza , Ian A. Bond , Sun-Ju Chung , Michael D. Albrow , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Hongjing Yang , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Jennifer C. Yee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Yuki Hirao , Stela Ishitani Silva , 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 , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Yoshitaka Itow
Spitzer Microlensing Program as a Probe for Globular Cluster Planets. Analysis of OGLE-2015-BLG-0448
The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the…
Solar and Stellar Astrophysics · Physics
2019-10-31
Radosław Poleski , Wei Zhu , Grant W. Christie , Andrzej Udalski , Andrew Gould , Etienne Bachelet , Jesper Skottfelt , Sebastiano Calchi Novati , M. K. Szymański , I. Soszyński , G. Pietrzyński , Ł. Wyrzykowski , K. Ulaczyk , P. Pietrukowicz , Szymon Kozłowski , J. Skowron , P. Mróz , M. Pawlak , C. Beichman , G. Bryden , S. Carey , M. Fausnaugh , B. S. Gaudi , C. B. Henderson , R. W. Pogge , Y. Shvartzvald , B. Wibking , J. C. Yee , T. G. Beatty , J. D. Eastman , J. Drummond , M. Friedmann , M. Henderson , J. A. Johnson , S. Kaspi , D. Maoz , J. McCormick , N. McCrady , T. Natusch , H. Ngan , I. Porritt , H. M. Relles , D. H. Sliski , T. -G. Tan , R. A. Wittenmyer , J. T. Wright , R. A. Street , Y. Tsapras , D. M. Bramich , K. Horne , C. Snodgrass , I. A. Steele , J. Menzies , R. Figuera Jaimes , J. Wambsganss , R. Schmidt , A. Cassan , C. Ranc , S. Mao , V. Bozza , M. Dominik , M. P. G. Hundertmark , U. G. Jørgensen , M. I. Andersen , M. J. Burgdorf , S. Ciceri , G. D'Ago , D. F. Evans , 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. Southworth , J. Surdej , E. Unda-Sanzana , P. Verma , C. von Essen , Y. -B. Wang , O. Wertz
We have investigated the lensing event KMT-2024-BLG-0404. The light curve of the event exhibited a complex structure with multiple distinct features, including two prominent caustic spikes, two cusp bumps, and a brief discontinuous feature…
Earth and Planetary Astrophysics · Physics
2025-07-11
Cheongho Han , Andrzej Udalski , Chung-Uk Lee , Yoon-Hyun Ryu , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Doeon Kim , Dong-Jin Kim , 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
We report the gravitational microlensing discovery of a sub-Saturn mass planet, MOA-2009-BLG-319Lb, orbiting a K or M-dwarf star in the inner Galactic disk or Galactic bulge. The high cadence observations of the MOA-II survey discovered…
Earth and Planetary Astrophysics · Physics
2015-05-20
N. Miyake , T. Sumi , Subo Dong , R. Street , L. Mancini , A. Gould , D. P. Bennett , Y. Tsapras , J. C. Yee , M. D. Albrow , I. A. Bond , P. Fouque , P. Browne , C. Han , C. Snodgrass , F. Finet , K. Furusawa , K. Harpsoe , W. Allen , M. Hundertmark , M. Freeman , D. Suzuki , F. Abe , C. S. Botzler , D. Douchin , A. Fukui , F. Hayashi , J. B. Hearnshaw , S. Hosaka , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , S. Makita , K. Masuda , Y. Matsubara , Y. Muraki , T. Nagayama , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , The MOA Collaboration , G. Bolt , M. Bos , G. W. Christie , D. L. DePoy , J. Drummond , A. Gal-Yam , B. S. Gaudi , E. Gorbikov , D. Higgins , K. -H. Hwang J. Janczak , S. Kaspi , C. -U. Lee , J. -R. Koo , S. Koz lowski , Y. Lee , F. Mallia , A. Maury , D. Maoz , J. McCormick , L. A. G. Monard , D. Moorhouse , J. A. Mu~noz , T. Natusch , E. O. Ofek , R. W. Pogge , D. Polishook , R. Santallo , A. Shporer , O. Spector , G. Thornley , The Micro FUN Collaboration , A. Allan , D. M. Bramich , K. Horne , N. Kains , I. Steele , The RoboNet Collaboration , V. Bozza , M. J. Burgdorf , S. Calchi Novati , M. Dominik , S. Dreizler , M. Glitrup , F. V. Hessman , T. C. Hinse , U. G. Jorgensen , C. Liebig , G. Maier , M. Mathiasen , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Southworth , J. Surdej , J. Wambsganss , F. Zimmer , The MiNDSTEp Consortium , V. Batista , J. P. Beaulieu , S. Brillant , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , J. Greenhill , D. Kubas , J. Menzies , The PLANET Collaboration
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
(abridged) Using the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale $t_\mathrm{E}$ ~ 300 d, we present a methodology for identifying the nature of localised deviations from single-lens point-source…
Earth and Planetary Astrophysics · Physics
2019-02-27
M. Dominik , E. Bachelet , V. Bozza , R. A. Street , C. Han , M. Hundertmark , A. Udalski , D. M. Bramich , K. A. Alsubai , S. Calchi Novati , S. Ciceri , G. D'Ago , R. Figuera Jaimes , T. Haugbølle , T. C. Hinse , K. Horne , U. G. Jørgensen , D. Juncher , N. Kains , H. Korhonen , L. Mancini , J. Menzies , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , R. Schmidt , J. Skottfelt , C. Snodgrass , J. Southworth , D. Starkey , I. A. Steele , J. Surdej , Y. Tsapras , J. Wambsganss , O. Wertz , P. Pietrukowicz , M. K. Szymański , P. Mróz , J. Skowron , I. Soszyński , K. Ulaczyk , R. Poleski
The study of extra-solar planetary systems has emerged as a new discipline of observational astronomy in the past few years with the discovery of a number of extra-solar planets. The properties of most of these extra-solar planets were not…
Astrophysics · Physics
2009-10-31
D. P. Bennett , S. H. Rhie , A. C. Becker , N. Butler , J. Dann , S. Kaspi , E. M. Leibowitz , Y. Lipkin , D. Maoz , H. Mendelson , B. A. Peterson , J. Quinn , O. Shemmer , S. Thomson , S. E. Turner
As a part of the project aiming to build a homogeneous sample of binary-lens (2L1S) events containing brown-dwarf (BD) companions, we investigate the 2021 season microlensing data collected by the Korea Microlensing Telescope Network…
Solar and Stellar Astrophysics · Physics
2023-07-12
Cheongho Han , Youn Kil Jung , Ian A. Bond , Sun-Ju Chung , Michael D. Albrow , Andrew Gould , Kyu-Ha Hwang , Chung-Uk Lee , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Hongjing Yang , Jennifer C. Yee , Weicheng Zang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , 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