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200 papers
We report the analysis of microlensing event OGLE-2017-BLG-1038, observed by the Optical Gravitational Lensing Experiment, Korean Microlensing Telescope Network, and Spitzer telescopes. The event is caused by a giant source star in the…
Solar and Stellar Astrophysics · Physics
2023-02-16
Amber Malpas , Michael D. Albrow , Jennifer C. Yee , Andrew Gould , Andrzej Udalski , Antonio Herrera Martin , Spitzer Team , : , Charles A. Beichman , Geoffery Bryden , Sebastiano Calchi Novati , Sean Carey , Calen B. Henderson , B. Scott Gaudi , Yossi Shvartzvald , Wei Zhu , KMTNet Collaboration , : , Sang-Mok Cha , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Yoon-Hyun Ryu , In-Gu Shin , Weicheng Zang , OGLE Collaboration , : , Patryk Iwanek , Szymon Kozlowski , Przemek Mróz , Pawel Pietrukowicz , Radoslaw Poleski , Krzysztof A. Rybicki , Jan Skowron , Igor Soszyński , Michal K. Szymański , Krzysztof Ulaczyk
OGLE-2016-BLG-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
We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the combined…
Earth and Planetary Astrophysics · Physics
2018-01-10
Y. -H. Ryu , J. C. Yee , A. Udalski , I. A. Bond , Y. Shvartzvald , W. Zang , R. Figuera Jaimes , U. G. Jorgensen , W. Zhu , C. X. Huang , Y. K. Jung , M. D. Albrow , S. -J. Chung , A. Gould , C. Han , K. -H. Hwang , I. -G. Shin , 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 , S. Calchi Novati , S. Carey , C. B. Henderson , C. Beichman , B. S. Gaudi , P. Mróz , R. Poleski , J. Skowron , M. K. Szymanski , I. Soszynski , S. Kozlowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak , F. Abe , Y. Asakura , 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 , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , N. J. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , G. Bryden , S. B. Howell , S. Jacklin , M. T. Penny , S. Mao , Pascal Fouque , T. Wang , R. A. Street , Y. Tsapras , M. Hundertmark , E. Bachelet , M. Dominik , Z. Li , S. Cross , A. Cassan , K. Horne , R. Schmidt , J. Wambsganss , S. K. Ment , D. Maoz , C. Snodgrass , I. A. Steele , V. Bozza , M. J. Burgdorf , S. Ciceri , G. D'Ago , D. F. Evans , T. C. Hinse , E. Kerins , R. Kokotanekova , P. Longa , J. MacKenzie , A. Popovas , M. Rabus , S. Rahvar , S. Sejadian , J. Skottfelt , J. Southworth , C. von Essen
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
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
We report the detection and mass measurement of a binary lens OGLE-2015-BLG-1285La,b, with the more massive component having $M_1>1.35\,M_\odot$ (80% probability). A main-sequence star in this mass range is ruled out by limits on blue…
Solar and Stellar Astrophysics · Physics
2015-12-22
Y. Shvartzvald , A. Udalski , A. Gould , C. Han , V. Bozza , M. Friedmann , M. Hundertmark , C. Beichman , G. Bryden , S. Calchi Novati , S. Carey , M. Fausnaugh , B. S. Gaudi , C. B. Henderson , T. Kerr , R. W. Pogge , W. Varricatt , B. Wibking , J. C. Yee , W. Zhu , R. Poleski , M. Pawlak , M. K. Szymański , J. Skowron , P. Mróz , S. Kozłowski , Ł. Wyrzykowski , P. Pietrukowicz , G. Pietrzyński , I. Soszyński , K. Ulaczyk , 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 , D. Maoz , S. Kaspi , R. A. Street , Y. Tsapras , E. Bachelet , M. Dominik , D. M. Bramich , Keith Horne , C. Snodgrass , I. A. Steele , J. Menzies , R. Figuera Jaimes , J. Wambsganss , R. Schmidt , A. Cassan , C. Ranc , S. Mao , Subo Dong , G. D'Ago , G. Scarpetta , P. Verma , U. G. Jørgensen , E. Kerins , J. Skottfelt
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…
Solar and Stellar Astrophysics · Physics
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
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…
Solar and Stellar Astrophysics · Physics
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
We report the discovery of a binary composed of two brown dwarfs, based on the analysis of the microlensing event OGLE-2016-BLG-1469. Thanks to detection of both finite-source and microlens-parallax effects, we are able to measure both the…
Solar and Stellar Astrophysics · Physics
2017-07-19
C. Han , A. Udalski , T. Sumi , A. Gould , M. D. Albrow , S. -J. Chung , Y. K. Jung , Y. -H. Ryu , I. -G. Shin , J. C. Yee , W. Zhu , S. -M. Cha , S. -L. Kim , D. -J. Kim , C. -U. Lee , Y. Lee , B. -G. Park , I. Soszyński , P. Mróz , P. Pietrukowicz , M. K. Szymański , J. Skowron R. Poleski , S. Kozłowski , K. Ulaczyk , M. Pawlak , F. Abe , Y. Asakura , D. P. Bennett , I. A. Bond , A. Bhattacharya , M. Donachie , M. Freeman , A. Fukui , Y. Hirao , Y. Itow , N. Koshimoto , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , N. J. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , R. Barry
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
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
We report the first mass and distance measurement of a caustic-crossing binary system OGLE-2014-BLG-1050L using the space-based microlens parallax method. \emph{Spitzer} captured the second caustic-crossing of the event, which occurred…
Solar and Stellar Astrophysics · Physics
2015-05-27
Wei Zhu , A. Udalski , A. Gould , M. Dominik , V. Bozza , C. Han , J. C. Yee , S. Calchi Novati , C. A. Beichman , S. Carey , R. Poleski , J. Skowron , S. Kozlowski , P. Mroz , P. Pietrukowicz , G. Pietrzynski , M. K. Szymanski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , C. Han , B. S. Gaudi , R. W. Pogge , D. L. DePoy , Y. K. Jung , J. -Y. Choi , K. -H. Hwang , I. -G. Shin , H. Park , J. Jeong
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…
Solar and Stellar Astrophysics · Physics
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
We report the discovery of a planet in a binary that was discovered from the analysis of the microlensing event OGLE-2018-BLG-1700. We identify the triple nature of the lens from the fact that the complex anomaly pattern can be decomposed…
Earth and Planetary Astrophysics · Physics
2020-01-22
Cheongho Han , Chung-Uk Lee , Andrzej Udalski , Andrew Gould , Ian A. Bond , 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 , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Takeharu Yamakawa , Atsunori Yonehara
We present the analysis of the binary gravitational microlensing event MOA-2015-BLG-020. The event has a fairly long timescale (about 63 days) and thus the light curve deviates significantly from the lensing model that is based on the…
Solar and Stellar Astrophysics · Physics
2017-08-30
Tianshu Wang , Wei Zhu , Shude Mao , I. A. Bond , A. Gould , A. Udalski , T. Sumi , V. Bozza , C. Ranc , A. Cassan , J. C. Yee , C. Han , F. Abe , Y. Asakura , 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 , Y. Muraki , M. Nagakane , K. Ohnishi , N. Rattenbury , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , D. Suzuki , P. J. Tristram , T. Yamada , A. Yonehara , M. Pawlak , P. Pietrukowicz , R. Poleski , J. Skowron , I. Soszynski , S. KozLowski , P. Mroz , K. Ulaczyk , M. K. Szymanski , C. Beichman , G. Bryden , S. Calchi Novati , S. Carey , M. Fausnaugh , B. S. Gaudi , C. B. Henderson , Y. Shvartzvald , B. Wibking , M. D. Albrow , S. -J. Chung , K. -H. Hwang , Y. K. Jung , Y. -H. Ryu , I. -G. Shin , S. -M. Cha , D. -J. Kim , H. -W. Kim , S. -L. Kim , C. -U. Lee , Y. Yee , B. -G. Park , R. W. Pogge , R. A. Street , Y. Tsapras , M. Hundertmark , E. Bachelet , M. Dominik , K. Horne , R. Figuera Jaimes , J. Wambsganss , D. M. Bramich , R. Schmidt , C. Snodgrass , I. A. Steele , J. Menzies
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
We present the analysis of the event OGLE-2017-BLG-1186 from the 2017 Spitzer microlensing campaign. This is a remarkable microlensing event because its source is photometrically bright and variable, which makes it possible to perform an…
Solar and Stellar Astrophysics · Physics
2019-07-26
Shun-Sheng Li , Weicheng Zang , Andrzej Udalski , Yossi Shvartzvald , Daniel Huber , Chung-Uk Lee , Takahiro Sumi , Andrew Gould , Shude Mao , Pascal Fouqué , Tianshu Wang , Subo Dong , Uffe G. Jørgensen , Andrew Cole , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Jennifer C. Yee , Sebastiano Calchi Novati , Charles A. Beichman , Geoffery Bryden , Sean Carey , B. Scott Gaudi , Calen B. Henderson , Wei Zhu , 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 , 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 , Grant Christie , John Drummond , Jonathan Green , Steve Hennerley , Tim Natusch , Ian Porritt , Etienne Bachelet , Dan Maoz , Rachel A. Street , Yiannis Tsapras , Valerio Bozza , Martin Dominik , Markus Hundertmark , Nuno Peixinho , Sedighe Sajadian , Martin J. Burgdorf , Daniel F. Evans , Roberto Figuera Jaimes , Yuri I. Fujii , Lauri K. Haikala , Christiane Helling , Thomas Henning , Tobias C. Hinse , Luigi Mancini , Penelope Longa-Peña , Sohrab Rahvar , Markus Rabus , Jesper Skottfelt , Colin Snodgrass , John Southworth , Eduardo Unda-Sanzana , Carolina von Essen , Jean-Phillipe Beaulieu , Joshua Blackman , Kym Hill
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
(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
We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q~0.03 which differs from that reported in Shvartzvald+2016. The event suffers from the well-known…
Earth and Planetary Astrophysics · Physics
2020-02-05
Shota Miyazaki , Takahiro Sumi , David P. Bennett , Andrzej Udalski , Yossi Shvartzvald , Rachel Street , Valerio Bozza , Jennifer C. Yee , Ian A. Bond , Nicholas Rattenbury , Naoki Koshimoto , Daisuke Suzuki , Akihiko Fukui , F. Abe , A. Bhattacharya , R. Barry , M. Donachie , H. Fujii , Y. Hirao , Y. Itow , Y. Kamei , I. Kondo , M. C. A. Li , C. H. Ling , Y. Matsubara , T. Matsuo , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , T. Saito , A. Sharan , H. Shibai , H. Suematsu , D. J. Sullivan , P. J. Tristram , T. Yamakawa , A. Yonehara , J. Skowron , R. Poleski , P. Mr'oz , M. K. Szyma'nski , I. Soszy'nski , P. Pietrukowicz , S. KozLowski , K. Ulaczyk , L. Wyrzykowski , Matan Friedmann , Shai Kaspi , Dan Maoz , M. Albrow , G. Christie , D. L. DePoy , A. Gal-Yam , A. Gould , C. -U. Lee , I. Manulis , J. McCormick , T. Natusch , H. Ngan , R. W. Pogge , I. Porritt , Y. Tsapras , E. Bachelet , M. P. G. Hundertmark , M. Dominik , D. M. Bramich , A. Cassan , R. Figuera Jaimes , K. Horne , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , S. Mao , U. G. Jorgensen , M. J. Burgdorf , S. Ciceri , S. Calchi Novati , G. D'Ago , D. F. Evans , T. C. Hinse , N. Kains , E. Kerins , H. Korhonen , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , J. Southworth , G. D'Ago , N. Peixinho , P. Verma