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We combine Spitzer and ground-based observations to measure the microlens parallax vector ${\mathbf \pi}_{\rm E}$, and so the mass and distance of OGLE-2014-BLG-0124L, making it the first microlensing planetary system with a space-based…
Earth and Planetary Astrophysics · Physics
2015-06-23
A. Udalski , J. C. Yee , A. Gould , S. Carey , W. Zhu , J. Skowron , S. Kozłowski , R. Poleski , P. Pietrukowicz , G. Pietrzyński , M. K. Szymański , P. Mróz , I. Soszyński , K. Ulaczyk , Ł. Wyrzykowski , C. Han , S. Calchi Novati , R. W. Pogge
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 extremely high magnification (A > 1000) binary microlensing event OGLE-2007-BLG-514. We obtained good coverage around the double peak structure in the light curve via follow-up observations from different observatories. The…
Earth and Planetary Astrophysics · Physics
2015-06-05
N. Miyake , A. Udalski , T. Sumi , D. P. Bennett , S. Dong , R. A. Street , J. Greenhill , I. A. Bond , A. Gould , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , F. Abe , A. Fukui , K. Furusawa , S. Holderness , Y. Itow , A. Korpela , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , T. Nagayama , K. Ohnishi , N. Rattenbury , To. Saito , T. Sako , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock , W. Allen , G. W. Christie , D. L. DePoy , B. S. Gaudi , C. Han , C. -U. Lee , J. McCormick , B. Monard , T. Natusch , B. -G. Park , R. W. Pogge , A. Allan , M. Bode , D. M. Bramich , N. Clay , M. Dominik , K. D. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , Y. Tsapras , M. D. Albrow , V. Batista , J. P. Beaulieu , S. Brillant , M. Burgdorf , J. A. R. Caldwell , A. Cassan , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , U. G. Jorgensen , S. Kane , D. Kubas , J. B. Marquette , R. Martin , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub
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
Mass measurements of gravitational microlenses require one to determine the microlens parallax $\pie$, but precise $\pie$ measurement, in many cases, is hampered due to the subtlety of the microlens-parallax signal combined with the…
Solar and Stellar Astrophysics · Physics
2018-06-06
C. Han , S. Calchi Novati , A. Udalski , C. -U. Lee , A. Gould , V. Bozza , P. Mróz , P. Pietrukowicz , J. Skowron , M. K. Szymański , R. Poleski , I. Soszyński , S. Kozłowski , K. Ulaczyk , M. Pawlak , K. Rybicki , P. Iwanek , M. D. Albrow , S. -J. Chung , K. -H. Hwang , Y. K. Jung , 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 , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. B. Henderson , M. Dominik , C. Helling , M. Hundertmark , U. G. Jørgensen , P. Longa-Peña , S. Lowry , S. Sajadian , M. J. Burgdorf , J. Campbell-White , S. Ciceri , D. F. Evans , L. K. Haikala , T. C. Hinse , S. Rahvar , M. Rabus , C. Snodgrass
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 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…
Solar and Stellar Astrophysics · Physics
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
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 report on the mass and distance measurements of two single-lens events from the 2015 \emph{Spitzer} microlensing campaign. With both finite-source effect and microlens parallax measurements, we find that the lens of OGLE-2015-BLG-1268 is…
Solar and Stellar Astrophysics · Physics
2016-07-06
Wei Zhu , S. Calchi Novati , A. Gould , A. Udalski , C. Han , Y. Shvartzvald , C. Ranc , U. G. Jorgensen , R. Poleski , V. Bozza , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. B. Henderson , R. W. Pogge , I. Porritt , B. Wibking , J. C. Yee , M. Pawlak , M. K. Szymanski , J. Skowron , P. Mroz , S. Kozlowski , L. Wyrzykowski , P. Pietrukowicz , G. Pietrzynski , I. Soszynski , 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 , D. -J. Kim , Y. Lee , M. Friedmann , S. Kaspi , D. Maoz , M. Hundertmark , R. A. Street , Y. Tsapras , D. M. Bramich , A. Cassan , M. Dominik , E. Bachelet , Subo Dong , R. Figuera Jaimes , K. Horne , S. Mao , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J. Wambsganss , J. Skottfelt , M. I. Andersen , M. J. Burgdorf , S. Ciceri , G. D'Ago , D. F. Evans , S. -H. Gu , T. C. Hinse , E. Kerins , H. Korhonen , M. Kuffmeier , L. Mancini , N. Peixinho , A. popovas , M. Rabus , S. Rahvar , R. T. Rasmussen , G. Scarpetta , J. Southworth , J. Surdej , C. von Essen , Y. -B. Wang , O. Wertz
OGLE-2014-BLG-0962 and the First Statistical Validation of Bayesian Priors for Galactic Microlensing
OGLE-2014-BLG-0962 (OB140962) is a stellar binary microlensing event that was well-covered by observations from the Spitzer satellite as well as ground-based surveys. Modelling yields a unique physical solution: a mid-M+M-dwarf binary with…
Solar and Stellar Astrophysics · Physics
2018-05-25
Yutong Shan , Jennifer C. Yee , Andrzej Udalski , Ian A. Bond , Yossi Shvartzvald , In-Gu Shin , Youn-Kil Jung , Sebastiano Calchi Novati , Charles A. Beichman , Sean Carey , B. Scott Gaudi , Andrew Gould , Richard W. Pogge , Radosław Poleski , Jan Skowron , Szymon Kozłowski , Przemysław Mróz , Paweł Pietrukowicz , Michał K. Szymański , Igor Soszyński , Krzysztof Ulaczyk , Łukasz Wyrzykowski , Fumio Abe , Richard K. 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 , Dan Maoz , Shai Kaspi , Matan Friedmann
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 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 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
The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly known due to observational difficulties caused by the…
Solar and Stellar Astrophysics · Physics
2015-05-19
K. -H. Hwang , A. Udalski , C. Han , Y. -H. Ryu , I. A. Bond , J. -P. Beaulieu , M. Dominik , K. Horne , A. Gould , B. S. Gaudi , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , L. Wyrzykowski , F. Abe , C. S. Botzler , J. B. Hearnshaw , Y. Itow , K. Kamiya , P. M. Kilmartin , K. Masuda , Y. Matsubara , M. Motomura , Y. Muraki , S. Nakamura , K. Ohnishi , C. Okada , N. Rattenbury , To. Saito , T. Sako , M. Sasaki , D. J. Sullivan , T. Sumi , P. J. Tristram , J. N. Wood , P. C. M. Yock , T. Yoshioka , M. Albrow , D. P. Bennett , D. M. Bramich , S. Brillant , J. A. R. Caldwell , J. J. Calitz , A. Cassan , K. H. Cook , E. Corrales , C. Coutures , M. Desort , S. Dieters , D. Dominis , J. Donatowicz , P. Fouque , J. Greenhill , K. Harpsoe , K. Hill , M. Hoffman , U. G. Jorgensen , S. Kane , D. Kubas , R. Martin , J. -B. Marquette , P. Meintjes , J. Menzies , K. Pollard , K. Sahu , I. Steele , C. Vinter , J. Wambsganss , A. Williams , K. Woller , M. Burgdorf , C. Snodgrass , M. Bode , D. L. Depoy , C. -U. Lee , B. -G. Park , R. W. Pogge
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 present a combined analysis of the observations of the gravitational microlensing event OGLE-2015-BLG-0479 taken both from the ground and by the {\it Spitzer Space Telescope}. The light curves seen from the ground and from space exhibit…
Solar and Stellar Astrophysics · Physics
2016-09-07
C. Han , A. Udalski , A. Gould , Wei Zhu , R. A. Street , J. C. Yee , C. Beichman , C. Bryden , S. Calchi Novati , S. Carey , M. Fausnaugh , B. S. Gaudi , Calen B. Henderson , Y. Shvartzvald , B. Wibking , M. K. Szymański , I. Soszyński , J. Skowron , P. Mróz , R. Poleski , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , Ł. Wyrzykowski , M. Pawlak , Y. Tsapras , M. Hundertmark , E. Bachelet , M. Dominik , D. M. Bramich , A. Cassan , R. Figuera Jaimes , K. Horne , C. Ranc , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , S. Mao , V. Bozza , U. G. Jørgensen , K. A. Alsubai , S. Ciceri , G. D'Ago , T. Haugbølle , F. V. Hessman , T. C. Hinse , D. Juncher , H. Korhonen , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , J. Southworth , D. Starkey , J. Surdej , O. Wertz , M. Zarucki , R. W. Pogge , D. L. DePoy
To obtain accurate mass measurements for cold planets discovered by microlensing, it is usually necessary to combine light curve modeling with at least two lens mass-distance relations. Often, a constraint on the Einstein ring radius…
Earth and Planetary Astrophysics · Physics
2018-02-07
J. -P. Beaulieu , V. Batista , D. P. Bennett , J. -B. Marquette , J. W. Blackman , A. A. Cole , C. Coutures , C. Danielski , D. Dominis-Prester , J. Donatowicz , A. Fukui , N. Koshimoto , C. Loncaric , J. C. Morales , T. Sumi , D. Suzuki , C. Henderson , Y. Shvartzvald , C. Beichman
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 lens mass and distance measurements of the nearby microlensing event TCP J05074264+2447555. We measure the microlens parallax vector ${\pi}_{\rm E}$ using Spitzer and ground-based light curves with constraints on the direction…
Instrumentation and Methods for Astrophysics · Physics
2020-07-22
Weicheng Zang , Subo Dong , Andrew Gould , Sebastiano Calchi Novati , Ping Chen , Hongjing Yang , Shun-Sheng Li , Shude Mao , K. B. Alton , Sean Carey , G. W. Christie , F. Delplancke-Ströbele , Dax L. Feliz , J. Green , Shaoming Hu , T. Jayasinghe , R. A. Koff , A. Kurtenkov , A. Mérand , Milen Minev , Robert Mutel , T. Natusch , Tyler Roth , Yossi Shvartzvald , Fengwu Sun , T. Vanmunster , Wei Zhu
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