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We report discovery of the lowest mass ratio exoplanet to be found by the microlensing method in the light curve of the event OGLE~2016--BLG--1195. This planet revealed itself as a small deviation from a microlensing single lens profile…
Earth and Planetary Astrophysics · Physics
2017-06-21
I. A. Bond , D. P. Bennett , T. Sumi , A. Udalski , D. Suzuki , N. J. Rattenbury , V. Bozza , 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 , C. Ranc , To. Saito , A. Sharan , D. J. Sullivan , P. J. Tristram , T. Yamada , T. Yamada , A. Yonehara , J. Skowron , M. K. Szymanski , R. Poleski , P. Mroz , I. Soszynski , P. Pietrukowicz , S. Kozlowski , K. Ulaczyk , M. Pawlak
We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, made with the gravitational microlensing method. This planet has a mass of m_p = 10.4 +- 1.7 Earth masses and orbits a star of mass M_* = 0.56 +-…
Earth and Planetary Astrophysics · Physics
2015-05-28
Y. Muraki , C. Han , D. P. Bennett , D. Suzuki , L. A. G. Monard , R. Street , U. G. Jorgensen , P. Kundurthy , J. Skowron , A. C. Becker , M. D. Albrow , P. Fouque , D. Heyrovsky , R. K. Barry , J. -P. Beaulieu , D. D. Wellnitz , I. A. Bond , T. Sumi , S. Dong , B. S. Gaudi , D. M. Bramich , M. Dominik , F. Abe , C. S. Botzler , M. Freeman , A. Fukui , K. Furusawa , F. Hayashi , J. B. Hearnshaw , S. Hosaka , Y. Itow , K. Kamiya , A. V. Korpela , P. M. Kilmartin , W. Lin , C. H. Ling , S. Makita , K. Masuda , Y. Matsubara , N. Miyake , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. J. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , G. W. Christie , D. L. DePoy , E. Gorbikov , A. Gould , S. Kaspi , C. -U. Lee , F. Mallia , D. Maoz , J. McCormick , D. Moorhouse , T. Natusch , B. -G. Park , R. W. Pogge , D. Polishook , A. Shporer , G. Thornley , J. C. Yee , A. Allan , P. Browne , K. Horne , N. Kains , C. Snodgrass , I. Steele , Y. Tsapras , V. Batista , C. S. Bennett , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , R. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , J. Greenhill , D. Kubas , J. -B. Marquette , R. Martin , J Menzies , K. C. Sahu , I. Waldman , A. Williams M. Zub , H. Bourhrous , Y. Matsuoka , T. Nagayama , N. Oi , Z. Randriamanakoto , V. Bozza , M. J. Burgdorf , S. Calchi Novati , S. Dreizler , F. Finet , M. Glitrup , K. Harpsoe , T. C. Hinse , M. Hundertmark , C. Liebig , G. Maier , L. Mancini , M. Mathiasen , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Surdej , J. Southworth , J. Wambsganss , F. Zimmer , A. Udalski , R. Poleski , L. Wyrzykowski , K. Ulaczyk , M. K. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski
We present the first microlensing candidate for a free-floating exoplanet-exomoon system, MOA-2011-BLG-262, with a primary lens mass of M_host ~ 4 Jupiter masses hosting a sub-Earth mass moon. The data are well fit by this exomoon model,…
Earth and Planetary Astrophysics · Physics
2015-06-18
D. P. Bennett , V. Batista , I. A. Bond , C. S. Bennett , D. Suzuki , J. -P. Beaulieu , A. Udalski , J. Donatowicz , F. Abe , C. S. Botzler , M. Freeman , D. Fukunaga , A. Fukui , Y. Itow , N. Koshimoto , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , T. Sumi , W. L. Sweatman , P. J. Tristram , N. Tsurumi , K. Wada , P. C. M. Yock , M. D. Albrow , E. Bachelet , S. Brillant , J. A. R. Caldwell , A. Cassan , A. A. Cole , E. Corrales , C. Coutures , S. Dieters , D. Dominis Prester , P. Fouque , J. Greenhill , K. Horne , J. -R. Koo , D. Kubas , J. -B. Marquette , R. Martin , J. W. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub J. Y. Choi , D. L. DePoy , Subo Dong , B. S. Gaudi , A. Gould , C. Han , C. B. Henderson , D. McGregor , C. -U. Lee , R. W. Pogge , I. -G. Shin , J. C. Yee , M. K. Szymaski , J. Skowron , R. Poleski , S. Kozowski , L. Wyrzykowski , M. Kubiak , P. Pietrukowicz , G. Pietrzyski , I. Soszyski , K. Ulaczyk , Y. Tsapras , R. A. Street , M. Dominik , D. M. Bramich , P. Browne , M. Hundertmark , N. Kains , C. Snodgrass , I. A. Steele , I. Dekany , O. A. Gonzalez , D. Heyrovsky , R. Kandori , E. Kerins , P. W. Lucas , D. Minniti , T. Nagayama , M. Rejkuba , A. C. Robin , R. Saito
We report the analysis of planetary microlensing event OGLE-2018-BLG-1185, which was observed by a large number of ground-based telescopes and by the $Spitzer$ Space Telescope. The ground-based light curve indicates a low planet-host star…
Earth and Planetary Astrophysics · Physics
2021-08-11
Iona Kondo , Jennifer C. Yee , David P. Bennett , Takahiro Sumi , Naoki Koshimoto , Ian A. Bond , Andrew Gould , Andrzej Udalski , Yossi Shvartzvald , Youn Kil Jung , Weicheng Zang , Valerio Bozza , Etienne Bachelet , Markus P. G. Hundertmark , Nicholas J. Rattenbury , F. Abe , R. Barry , A. Bhattacharya , M. Donachie , A. Fukui , H. Fujii , Y. Hirao , S. Ishitani Silva , Y. Itow , R. Kirikawa , M. C. A. Li , Y. Matsubara , S. Miyazaki , Y. Muraki , G. Olmschenk , C. Ranc , Y. Satoh , H. Shoji , D. Suzuki , Y. Tanaka , P. J. Tristram , T. Yamawaki , A. Yonehara , P. Mróz , R. Poleski , J. Skowron , M. K. Szymański , I. Soszyński , S. Kozłowski , P. Pietrukowicz K. Ulaczyk , K. A. Rybicki , P. Iwanek , M. Wrona , M. D. Albrow , S. -J. Chung , C. Han , K. -H. Hwang , H. -W. Kim , I. -G. Shin , S. -M. Cha , D. -J. Kim , S. -L. Kim , C. -U. Lee , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge , Y. -H. Ryu , C. A. Beichman , G. Bryden , S. Calchi Novati , S. Carey , B. S. Gaudi , C. B. Henderson , W. Zhu , D. Maoz , M. T. Penny , M. Dominik , U. G. Jørgensen , P. Longa-Pe{\~{ n}}a , N. Peixinho , S. Sajadian , J. Skottfelt , C. Snodgrass , J. Tregloan-Reed , M. J. Burgdorf , J. Campbell-White , S. Dib , Y. I. Fujii , T. C. Hinse , E. Khalouei , S. Rahvar , M. Rabus , J. Southworth , Y. Tsapras , R. A. Street , D. M. Bramich , A. Cassan , K. Horne , J. Wambsganss , S. Mao , A. Saha
We report the discovery of a microlensing planet OGLE-2012-BLG-0950Lb with the planet/host mass ratio of $q \sim 2 \times 10^{-4}$. A long term distortion detected in both MOA and OGLE light curve can be explained by the microlens parallax…
Earth and Planetary Astrophysics · Physics
2016-12-21
N. Koshimoto , A. Udalski , J. P. Beaulieu , T. Sumi , D. P. Bennett , I. A. Bond , N. Rattenbury , A. Fukui , V. Batista , J. B. Marquette , S. Brillant , F. Abe , Y. Asakura , A. Bhattacharya , M. Donachie , M. Freeman , Y. Hirao , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , T. Matsuo , Y. Muraki , K. Ohnishi , H. Oyokawa , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , D. Suzuki , P. J. Tristram , A. Yonehara , S. Kozlowski , P. Pietrukowicz , R. Poleski , J. Skowron , I. Soszynski , M. K. Szymanski , K. Ulaczyk , L. Wyrzykowski
We present the analysis of planetary microlensing event MOA-2011-BLG-291, which has a mass ratio of $q=(3.8\pm0.7)\times10^{-4}$ and a source star that is redder (or brighter) than the bulge main sequence. This event is located at a low…
Earth and Planetary Astrophysics · Physics
2018-08-29
David P. Bennett , Andrzej Udalski , Ian A. Bond , Daisuke Suzuki , Yoon-Hyun Ryu , Fumio Abe , Richard K. Barry , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yuki Hirao , Kohei Kawasaki , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Masayuki Nagakane , Koji Ohnishi , Clément Ranc , Nicholas J. Rattenbury , Haruno Suematsu , Takahiro Sumi , Paul J. Tristram , Atsunori Yonehara , Michał K. Szymański , Igor Soszyński , Łukasz Wyrzykowski , Krzysztof Ulaczyk , Radek Poleski , Szymon Kozłowski , Paweł Pietrukowicz , Jan Skowron , Yossi Shvartzvald , Dan Maoz , Shai Kaspi , Matan Friedmann , Virginie Batista , Darren DePoy , Subo Dong , B. Scott Gaudi , Andrew Gould , Cheongho Han Richard W. Pogge , Thiam-Guan Tan , Jennifer C. Yee
At $q=1.81\pm 0.20 \times 10^{-5}$, KMT-2018-BLG-0029Lb has the lowest planet-host mass ratio $q$ of any microlensing planet to date by more than a factor of two. Hence, it is the first planet that probes below the apparent "pile-up" at…
Earth and Planetary Astrophysics · Physics
2020-11-25
Andrew Gould , Yoon-Hyun Ryu , Sebastiano Calchi Novati , Weicheng Zang , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , 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 , Charles Beichman , Geoff Bryden , Sean Carey , B. Scott Gaudi , Calen B. Henderson , Wei Zhu , Pascal Fouqué , Matthew T. Penny , Andreea Petric , Todd Burdullis , Shude Mao
We report the discovery of a planetary system in which a super-earth orbits a late M-dwarf host. The planetary system was found from the analysis of the microlensing event OGLE-2017-BLG-0482, wherein the planet signal appears as a…
Earth and Planetary Astrophysics · Physics
2018-05-02
C. Han , Y. Hirao , A. Udalski , C. -U. Lee , V. Bozza , A. Gould , F. Abe , R. Barry , I. A. Bond , D. P. Bennett , A. Bhattacharya , M. Donachie , P. Evans , A. Fukui , Y. Itow , K. Kawasaki , N. Koshimoto , M. C. A. Li , C. H. Ling , Y. Matsubara , S. Miyazaki , H. Munakata , Y. Muraki , M. Nagakane , K. Ohnishi , C. Ranc , N. Rattenbury , T. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , T. Yamada , A. Yonehara , P. Mróz , R. Poleski , S. Kozłowski , I. Soszyński , P. Pietrukowicz , J. Skowron , M. K. Szymańsk , K. Ulaczyk , M. Pawlak , K. Rybicki , P. Iwanek , M. D. Albrow , S. -J. Chung , K. -H. Hwang , Y. K. Jung , D. Kim , W. -T. Kim , H. -W. Kim , Y. -H. Ryu , I. -G. Shin , Y. Shvartzvald , J. C. Yee , W. Zhu , S. -M. Cha , S. -L. Kim , D. -J. Kim , D. -J. Lee , Y. Lee , B. -G. Park , R. W. Pogge
We report the discovery of a planet with a high planet-to-star mass ratio in the microlensing event MOA-2009-BLG-387, which exhibited pronounced deviations over a 12-day interval, one of the longest for any planetary event. The host is an M…
Earth and Planetary Astrophysics · Physics
2015-05-27
Virginie Batista , A. Gould , S. Dieters , Subo Dong , I. Bond , J. P. Beaulieu , D. Maoz , B. Monard , G. W. Christie , J. McCormick , M. D. Albrow , K. Horne , Y. Tsapras , M. J. Burgdorf , S. Calchi Novati , J. Skottfelt , J. Caldwell , S. Kozlowski , D. Kubas , B. S. Gaudi , C. Han , D. P. Bennett , J. An , the MOA Collaboration , the PLANET Collaboration , the MicroFUN Collaboration , the MiNDSTEp Consortium , the RoboNet Collaboration
We observed the microlensing event MOA-2007-BLG-192 at high angular resolution in JHKs with the NACO adaptive optics system on the VLT while the object was still amplified by a factor 1.23 and then at baseline 18 months later. We analyzed…
Earth and Planetary Astrophysics · Physics
2012-04-03
D. Kubas , J. P. Beaulieu , D. P. Bennett , A. Cassan , A. Cole , J. Lunine , J. B. Marquette , S. Dong , A. Gould , T. Sumi , V. Batista , P. Fouque , S. Brillant , S. Dieters , C. Coutures , J. Greenhill , I. Bond , T. Nagayama , A. Udalski , E. Pompei , D. E. A. Nuernberger , J. B. Le Bouquin
We report the analysis of OGLE-2019-BLG-0960, which contains the smallest mass-ratio microlensing planet found to date (q = 1.2--1.6 x 10^{-5} at 1-sigma). Although there is substantial uncertainty in the satellite parallax measured by…
Earth and Planetary Astrophysics · Physics
2021-10-13
Jennifer C. Yee , Weicheng Zang , Andrzej Udalski , Yoon-Hyun Ryu , Jonathan Green , Steve Hennerley , Andrew Marmont , Takahiro Sumi , Shude Mao , Mariusz Gromadzki , 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 , Andrew Gould , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , Hyoun-Woo Kim , In-Gu Shin , Yossi Shvartzvald , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Etienne Bachelet , Grant Christie , Markus P. G. Hundertmark , Dan Maoz , Jennie McCormick , Tim Natusch , Matthew T. Penny , Rachel A. Street , Yiannis Tsapras , Charles A. Beichman , Geoffery Bryden , Sebastiano Calchi Novati , Sean Carey , B. Scott Gaudi , Calen B. Henderson , Samson Johnson , Wei Zhu , Ian A. Bond , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Hikaru Shoji , Daisuke Suzuki , Yuzuru Tanaka , Paul J. Tristram , Tsubasa Yamawaki , Atsunori Yonehara
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…
Earth and Planetary Astrophysics · Physics
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
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 report analysis of high microlensing event MOA-2008-BLG-379, which has a strong microlensing anomaly at its peak, due to a massive planet with a mass ratio of q = 6.9 x 10^{-3}. Because the faint source star crosses the large resonant…
Earth and Planetary Astrophysics · Physics
2015-06-17
D. Suzuki , A. Udalski , T. Sumi , D. P. Bennett , I. A. Bond , F. Abe , C. S. Botzler , M. Freeman , M. Fukagawa , A. Fukui , K. Furusawa , Y. Itow , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , K. Ohnishi , N. Rattenbury , To. Saito , H. Shibai , D. J. Sullivan , K. Suzuki , W. L. Sweatman , S. Takino , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymański , M. Kubiak , I. Soszyński , G. Pietrzyński , R. Poleski , K. Ulaczyk , Ł. Wyrzykowski
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…
Earth and Planetary Astrophysics · Physics
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
We examined the anomalies in the light curves of the lensing events MOA-2022-BLG-033, KMT-2023-BLG-0119, and KMT-2023-BLG-1896. We conducted detailed modeling of the light curves to uncover the nature of the anomalies. This modeling…
Earth and Planetary Astrophysics · Physics
2025-01-07
Cheongho Han , Ian A. Bond , Youn Kil Jung , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Chung-Uk Lee , 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 , 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
We report the discovery of a microlensing planet --- MOA-2016-BLG-227Lb --- with a large planet/host mass ratio of $q \simeq 9 \times 10^{-3}$. This event was located near the $K2$ Campaign 9 field that was observed by a large number of…
Earth and Planetary Astrophysics · Physics
2017-06-28
Naoki Koshimoto , Yossi Shvartzvald , David Bennett , Matthew Penny , Markus Hundertmark , Ian A. Bond , Weicheng Zang , Calen Henderson , Daisuke Suzuki , Nicholas J. Rattenbury , Takahiro Sumi , Fumio Abe , Yuichiro Asakura , Aparna Bhattacharya , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , M. C. A. Li , C. Ling , Kimiaki Masuda , Y. Matsubara , Taro Matsuo , Yasushi Muraki , Masayuki Nagakane , Kouji Ohnishi , C. Ranc , To. Saito , A. Sharan , Hiroshi Shibai , Denis Sullivan , P. Tristram , A. Yonehara , Christopher Gelino , Charles Beichman , Jean-Philippe Beaulieu , J. -B. Marquette , Virginie Batista , M. Friedmann , N. Hallakoun , Shai Kaspi , Dani Maoz , G. Bryden , Sebastiano Calchi Novati , Steve Howell , T. Wang , Shude Mao , Pascal Fouque , Heidi Korhonen , Uffe Jorgensen , Rachel Street , Yiannis Tsapras , Martin Dominik , Eamonn Kerins , Arnaud Cassan , Colin Snodgrass , Etienne Bachelet , Valerio Bozza , D. M. Bramich
We aim to find missing microlensing planets hidden in the unanalyzed lensing events of previous survey data. For this purpose, we conduct a systematic inspection of high-magnification microlensing events, with peak magnifications $A_{\rm…
Earth and Planetary Astrophysics · Physics
2021-05-26
Cheongho Han , Andrzej Udalski , Chung-Uk Lee , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Youn Kil Jung , Doeon Kim , Hyoun-Woo Kim , Yoon-Hyun Ryu , 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 , Chun-Hwey Kim , Woong-Tae Kim , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona
Global "second-generation" microlensing surveys aim to discover and characterize extrasolar planets and their frequency, by means of round-the-clock high-cadence monitoring of a large area of the Galactic bulge, in a controlled experiment.…
Earth and Planetary Astrophysics · Physics
2014-03-05
Y. Shvartzvald , D. Maoz , S. Kaspi , T. Sumi , A. Udalski , A. Gould , D. P. Bennett , C. Han , F. Abe , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , N. Koshimoto , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , W. L. Sweatman , D. Suzuki , P. J. Tristram , K. Wada , P. C. M. Yock , J. Skowron , S. Kozłowski , M. K. Szymański , M. Kubiak , G. Pietrzyński , I. Soszyński , K. Ulaczyk , Ł. Wyrzykowski , R. Poleski , P. Pietrukowicz
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