Related papers: MOA-2013-BLG-220Lb: Massive Planetary Companion to…

MOA-2009-BLG-387Lb: A massive planet orbiting an M dwarf

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

Revisiting MOA 2013 BLG-220L: A Solar-type star with a Cold super-Jupiter Companion

We present the analysis of high-resolution images of MOA-2013-BLG-220, taken with the Keck adaptive optics system 6 years after the initial observation, identifying the lens as a solar-type star hosting a super-Jupiter mass planet. The…

Earth and Planetary Astrophysics · Physics 2020-08-20 Aikaterini Vandorou , David P. Bennett , Jean-Philippe Beaulieu , Christophe L. Alard , Joshua W. Blackman , Andrew A. Cole , Aparna Bhattacharya , Ian A. Bond , Naoki Koshimoto , Jean-Baptiste Marquette

Discovery and Mass Measurements of a Cold, 10-Earth Mass Planet and Its Host Star

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

A sub-Saturn Mass Planet, MOA-2009-BLG-319Lb

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

OGLE-2018-BLG-1269Lb: A Jovian Planet With A Bright, $I=16$ Host

We report the discovery of a planet in the microlensing event OGLE-2018-BLG-1269, with planet-host mass ratio $q \sim 6\times10^{-4}$, i.e., $0.6$ times smaller than the Jupiter/Sun mass ratio. Combined with the $Gaia$ parallax and proper…

Solar and Stellar Astrophysics · Physics 2020-09-09 Youn Kil Jung , Andrew Gould , Andrzej Udalski , Takahiro Sumi , Jennifer C. Yee , Cheongho Han , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Wei Zhu , Weicheng Zang , 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 , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzystof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Fumio Abe , Richard Barry , David P. Bennett , Ian A. Bond , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Masayuki Nagakane , Clément Ranc , Nicholas~J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara

MOA-2010-BLG-477Lb: constraining the mass of a microlensing planet from microlensing parallax, orbital motion and detection of blended light

Microlensing detections of cool planets are important for the construction of an unbiased sample to estimate the frequency of planets beyond the snow line, which is where giant planets are thought to form according to the core accretion…

Earth and Planetary Astrophysics · Physics 2015-06-05 E. Bachelet , I. -G. Shin , C. Han , P. Fouqué , A. Gould , J. W. Menzies , J. -P. Beaulieu , D. P. Bennett , I. A. Bond , Subo Dong , D. Heyrovský , J. B. Marquette , J. Marshall , J. Skowron , R. A. Street , T. Sumi , A. Udalski , L. Abe , K. Agabi , M. D. Albrow , W. Allen , E. Bertin , M. Bos , D. M. Bramich , J. Chavez , G. W. Christie , A. A. Cole , N. Crouzet , S. Dieters , M. Dominik , J. Drummond , J. Greenhill , T. Guillot , C. B. Henderson , F. V. Hessman , K. Horne , M. Hundertmark , J. A. Johnson , U. G. Jørgensen , R. Kandori , C. Liebig , D. Mékarnia , J. McCormick , D. Moorhouse , T. Nagayama , D. Nataf , T. Natusch , S. Nishiyama , J. -P. Rivet , K. C. Sahu , Y. Shvartzvald , G. Thornley , A. R. Tomczak , Y. Tsapras , J. C. Yee , V. Batista , C. S. Bennett , S. Brillant , J. A. R. Caldwell , A. Cassan , E. Corrales , C. Coutures , D. Dominis Prester , J. Donatowicz , D. Kubas , R. Martin , A. Williams , M. Zub , L. Andrade de Almeida , D. L. DePoy , B. S. Gaudi , L. -W. Hung , F. Jablonski , S. Kaspi , N. Klein , C. -U. Lee , Y. Lee , J. -R. Koo , D. Maoz , J. A. Muñoz , R. W. Pogge , D. Polishook , A. Shporer , F. Abe , C. S. Botzler , P. Chote , M. Freeman , A. Fukui , K. Furusawa , P. Harris , Y. Itow , S. Kobara , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , K. Ohmori , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymański , I. Soszyński , M. Kubiak , R. Poleski , K. Ulaczyk , G. Pietrzyński , Ł. Wyrzykowski , N. Kains , C. Snodgrass , I. A. Steele , K. A. Alsubai , V. Bozza , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , S. Hardis , K. Harpsøe , T. C. Hinse , E. Kerins , L. Mancini , M. Mathiasen , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , S. Schäfer , F. Schönebeck , J. Southworth , J. Surdej , J. Wambsganss

OGLE-2012-BLG-0724Lb: A Saturn-mass Planet around an M-dwarf

We report the discovery of a planet by the microlensing method, OGLE-2012-BLG-0724Lb. Although the duration of the planetary signal for this event was one of the shortest seen for a planetary event, the anomaly was well covered thanks to…

Earth and Planetary Astrophysics · Physics 2016-06-29 Y. Hirao , A. Udalski , T. Sumi , D. P. Bennett , I. A. Bond , N. Rattenbury , D. Suzuki , N. Koshimoto , F. Abe , Y. Asakura , A. Bhattacharya , M. Freeman , A. Fukui , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , T. Matsuo , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , To. Saito , A. Sharan , H. Shibai , D. J. Sullivan , P. J. Tristram , A. Yonehara , R. Poleski , J. Skowron , P. Mróz , M. K. Szymański , S. Kozłowski , P. Pietrukowicz , I. Soszyński , Ł. Wyzykowski , K. Ulaczyk

MOA-2007-BLG-400 A Super-Jupiter Mass Planet Orbiting a Galactic BulgeK-dwarf Revealed by Keck Adaptive Optics Imaging

We present Keck/NIRC2 adaptive optics imaging of planetary microlensing event MOA-2007-BLG-400 that resolves the lens star system from the source. We find that the MOA-2007-BLG-400L planetary system consists of a $1.71\pm 0.27 M_{\rm Jup}$…

Earth and Planetary Astrophysics · Physics 2020-09-08 Aparna Bhattacharya , David P. Bennett , Jean P. Beaulieu , Ian A. Bond , Naoki Koshimoto , Jessica R. Lu , Joshua W. Blackman , Aikaterini Vandorou , Sean K. Terry , Virginie Batista , Jean B. Marquette , Andrew A. Cole , Akihiko Fukui , Calen B. Henderson

MOA-2020-BLG-208Lb: Cool Sub-Saturn Planet Within Predicted Desert

We analyze the MOA-2020-BLG-208 gravitational microlensing event and present the discovery and characterization of a new planet, MOA-2020-BLG-208Lb, with an estimated sub-Saturn mass. With a mass ratio $q = 3.17^{+0.28}_{-0.26} \times…

Earth and Planetary Astrophysics · Physics 2023-05-24 Greg Olmschenk , David P. Bennett , Ian A. Bond , Weicheng Zang , Youn Kil Jung , Jennifer C. Yee , Etienne Bachelet , Fumio Abe , Richard K. Barry , Aparna Bhattacharya , Hirosane Fujii , Akihiko Fukui , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Iona Kondo , Naoki Koshimoto , Yutaka Matsubara , Sho Matsumoto , Shota Miyazaki , Brandon Munford , Yasushi Muraki , Arisa Okamura , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Taiga Toda , Paul J. Tristram , Katie Vandorou , Hibiki Yama , Michael D. Albrow , Sang-Mok Cha , Sun-Ju Chung , Andrew Gould , Cheongho Han , Kyu-Ha Hwang , 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 , Yossi Shvartzvald , Grant Christie , Tony Cooper , John Drummond , Jonathan Green , Steve Hennerley , Jennie McCormick , L. A. G. Monard , Tim Natusch , Ian Porritt , Thiam-Guan Tan , Shude Mao , Dan Maoz , Matthew T. Penny , Wei Zhu , V. Bozza , Arnaud Cassan , Martin Dominik , Markus Hundertmark , R. Figuera Jaimes , K. Kruszyńska , K. A. Rybicki , R. A. Street , Y. Tsapras , Joachim Wambsganss , Ł. Wyrzykowski , P. Zieliński , Gioia Rau

KMT-2017-BLG-0165Lb: A Super-Neptune mass planet Orbiting a Sun-like Host Star

We report the discovery of a low mass-ratio planet $(q = 1.3\times10^{-4})$, i.e., 2.5 times higher than the Neptune/Sun ratio. The planetary system was discovered from the analysis of the KMT-2017-BLG-0165 microlensing event, which has an…

Earth and Planetary Astrophysics · Physics 2019-03-06 Youn Kil Jung , Andrew Gould , Weicheng Zang , Kyu-Ha Hwang , Yoon-Hyun Ryu , Cheongho Han , Jennifer C. Yee , Michael D. Albrow , Sun-Ju Chung , In-Gu Shin , Yossi Shvartzvald , Wei Zhu , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Matthew T. Penny , Shude Mao , Pascal Fouqué , Tianshu Wang

A Jovian-mass Planet in Microlensing Event OGLE-2005-BLG-071

We report the discovery of a several-Jupiter mass planetary companion to the primary lens star in microlensing event OGLE-2005-BLG-071. Precise (<1%) photometry at the peak of the event yields an extremely high signal-to-noise ratio…

Astrophysics · Physics 2009-11-11 A. Udalski , M. Jaroszynski , B. Paczynski , M. Kubiak , M. K. Szymanski , I. Soszynski , G. Pietrzynski , K. Ulaczyk , O. Szewczyk , L. Wyrzykowski , G. W. Christie , D. L. DePoy , S. Dong , A. Gal-Yam , B. S. Gaudi , A. Gould , C. Han , S. Lepine , J. McCormick , B. -G. Park , R. W. Pogge , D. P. Bennett , I. A. Bond , Y. Muraki , P. J. Tristram , P. C. M. Yock , J. P. Beaulieu , D. M. Bramich , S. W. Dieters , J. Greenhill , K. Hill , K. Horne , D. Kubas

A Low-Mass Planet with a Possible Sub-Stellar-Mass Host in Microlensing Event MOA-2007-BLG-192

We report the detection of an extrasolar planet of mass ratio q ~ 2 x 10^(-4) in microlensing event MOA-2007-BLG-192. The best fit microlensing model shows both the microlensing parallax and finite source effects, and these can be combined…

Astrophysics · Physics 2009-11-13 D. P. Bennett , I. A. Bond , A. Udalski , T. Sumi , F. Abe , A. Fukui , K. Furusawa , J. B. Hearnshaw , S. Holderness , Y. Itow , K. Kamiya , A. V. Korpela , P. M. Kilmartin , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , T. Okumura , K. Ohnishi , Y. C. Perrott , N. J. Rattenbury , T. Sako , To. Saito , S. Sato , L. Skuljan , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , L. Wyrzykowski , K. Ulaczyk , V. Batista , J. P. Beaulieu , S. Brillant , A. Cassan , P. Fouque , P. Kervella , D. Kubas , J. B. Marquette

OGLE-2008-BLG-355Lb: A Massive Planet around A Late type Star

We report the discovery of a massive planet OGLE-2008-BLG-355Lb. The light curve analysis indicates a planet:host mass ratio of q = 0.0118 +/- 0.0006 at a separation of 0.877 +/- 0.010 Einstein radii. We do not measure a significant…

Earth and Planetary Astrophysics · Physics 2015-06-19 N. Koshimoto , A. Udalski , T. Sumi , D. P. Bennett , I. A. Bond , N. Rattenbury , 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 , To. Saito , H. Shibai , D. J. Sullivan , K. Suzuki , D. 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

MOA-2012-BLG-505Lb: A super-Earth mass planet probably in the Galactic bulge

We report the discovery of a super-Earth mass planet in the microlensing event MOA-2012-BLG-505. This event has the second shortest event timescale of $t_{\rm E}=10 \pm 1$ days where the observed data show evidence of planetary companion.…

Earth and Planetary Astrophysics · Physics 2017-07-19 Masayuki Nagakane , Takahiro Sumi , Naoki Koshimoto , David P. Bennett , Ian A. Bond , Nicholas J. Rattenbury , Daisuke Suzuki , Fumio Abe , Yuichiro Asakura , Richard K. Barry , Aparna Bhattacharya , M. Donachie , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , M. C. A. Li , C. H. Ling , Kimiaki Masuda , Y. Matsubara , Taro Matsuo , Yasushi Muraki , Kouji Ohnishi , C. Ranc , To. Saito , A. Sharan , Hiroshi Shibai , Denis J. Sullivan , P. J. Tristram , Touko Yamada , A. Yonehara

An Earth-mass Planet in a Time of Covid-19: KMT-2020-BLG-0414Lb

We report the discovery of KMT-2020-BLG-0414Lb, with a planet-to-host mass ratio $q_2 = 0.9$--$1.2 \times 10^{-5} = 3$--$4~q_{\oplus}$ at $1\sigma$, which is the lowest mass-ratio microlensing planet to date. Together with two other recent…

Earth and Planetary Astrophysics · Physics 2021-11-17 Weicheng Zang , Cheongho Han , Iona Kondo , Jennifer C. Yee , Chung-Uk Lee , Andrew Gould , Shude Mao , Leandro de Almeida , Yossi Shvartzvald , Xiangyu Zhang , Michael D. Albrow , Sun-Ju Chung , 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 , John Drummond , Thiam-Guan Tan , José Dias do Nascimento Júnior , Dan Maoz , Matthew T. Penny , Wei Zhu , Ian A. Bond , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yuki Hirao , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Hikaru Shoji , Takahiro Sumi , Daisuke Suzuki , Yuzuru Tanaka , Paul J. Tristram , Tsubasa Yamawaki , Atsunori Yonehara , Andreea Petric , Todd Burdullis , Pascal Fouqué

MOA-bin-29b : A Microlensing Gas Giant Planet Orbiting a Low-mass Host Star

We report the discovery of a gas giant planet orbiting a low-mass host star in the microlensing event MOA-bin-29 that occurred in 2006. We find five degenerate solutions with the planet/host-star mass ratio of $q \sim 10^{-2}$. The Einstein…

Earth and Planetary Astrophysics · Physics 2019-11-27 Iona Kondo , Takahiro Sumi , David P. Bennett , Andrzej Udalski , Ian A. Bond , Nicholas J. Rattenbury , Valerio Bozza , Yuki Hirao , Daisuke Suzuki , Naoki Koshimoto , Masayuki Nagakane , Shota Miyazaki , Fumio Abe , Richard Barry , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Hirosane Fujii , Yoshitaka Itow , Yuhei Kamei , Man Cheung Alex Li , Yutaka Matsubara , Taro Matsuo , Yasushi Muraki , Clément Ranc , Hiroshi Shibai , Haruno Suematsu , Denis J. Sullivan , Paul J. Tristram , Takeharu Yamakawa , Atsunori Yonehara , Przemek Mróz , Michał K. Szymański , Igor Soszyński , Krzysztof Ulaczyk

OGLE-2016-BLG-0596Lb: High-Mass Planet From High-Magnification Pure-Survey Microlensing Event

We report the discovery of a high mass-ratio planet $q=0.012$, i.e., 13 times higher than the Jupiter/Sun ratio. The host mass is not presently measured but can be determined or strongly constrained from adaptive optics imaging. The planet…

Earth and Planetary Astrophysics · Physics 2017-03-15 P. Mróz , C. Han , A. Udalski , R. Poleski , J. Skowron , M. K. Szymański , I. Soszyński , P. Pietrukowicz , S. Kozłowski , K. Ulaczyk , Ł. Wyrzykowski , M. Pawlak , M. D. Albrow , S. -M. Cha , S. -J. Chung , Y. K. Jung , D. -J. Kim , S. -L. Kim , C. -U. Lee , Y. Lee , B. -G. Park , R. W. Pogge , Y. -H. Ryu , I. -G. Shin , J. C. Yee , W. Zhu , A. Gould

A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing

We present the discovery of a substellar companion to the primary host lens in the microlensing event MOA-2012-BLG-006. The companion-to-host mass ratio is 0.016, corresponding to a companion mass of $\approx8~M_{\rm Jup} (M_*/0.5M_\odot)$.…

Earth and Planetary Astrophysics · Physics 2017-11-15 R. Poleski , A. Udalski , I. A. Bond , J. P. Beaulieu , C. Clanton , S. Gaudi , M. K. Szymański , I. Soszyński , P. Pietrukowicz , Szymon Kozłowski , J. Skowron , Ł. Wyrzykowski , K. Ulaczyk , D. P. Bennett , T. Sumi , D. Suzuki , N. J. Rattenbury , 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 , V. Batista , J. B. Marquette

OGLE-2017-BLG-0482Lb: A Microlensing Super-Earth Orbiting a Low-mass Host Star

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

MOA-2010-BLG-353Lb A Possible Saturn Revealed

We report the discovery of a possible planet in microlensing event MOA-2010-BLG-353. This event was only recognised as having a planetary signal after the microlensing event had finished, and following a systematic analysis of all archival…

Earth and Planetary Astrophysics · Physics 2015-10-07 N. J. Rattenbury , D. P. Bennett , T. Sumi , N. Koshimoto , I. A. Bond , A. Udalski , F. Abe , A. Bhattacharya , M. Freeman , A. Fukui , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , K. Ohnishi , To. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , S. Kozlowski , P. Mroz , P. Pietrukowicz , G. Pietrzynski , R. Poleski , D. Skowron , J. Skowron , I. Soszynski , M. K. Szymanski , K. Ulaczyk , L. Wyrzykowski