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

Single-lens mass measurement in the high-magnification microlensing event Gaia19bld located in the Galactic disc

We present the photometric analysis of Gaia19bld, a high-magnification ($A\approx60$) microlensing event located in the southern Galactic plane, which exhibited finite source and microlensing parallax effects. Due to a prompt detection by…

Astrophysics of Galaxies · Physics 2022-01-05 K. A. Rybicki , Ł. Wyrzykowski , E. Bachelet , A. Cassan , P. Zieliński , A. Gould , S. Calchi Novati , J. C. Yee , Y. -H. Ryu , M. Gromadzki , P. Mikołajczyk , N. Ihanec , K. Kruszyńska , F. -J. Hambsch , S. Zoła , S. J. Fossey , S. Awiphan , N. Nakharutai , F. Lewis , F. Olivares E. , S. Hodgkin , A. Delgado , E. Breedt , D. L. Harrison , M. vanLeeuwen , G. Rixon , T. Wevers , A. Yoldas , A. Udalski , M. K. Szymański , I. Soszyński , P. Pietrukowicz , S. Kozłowski , J. Skowron , R. Poleski , K. Ulaczyk , P. Mróz , P. Iwanek , M. Wrona , R. A. Street , Y. Tsapras , M. Hundertmark , M. Dominik , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. Henderson , Y. Shvartzvald , W. Zang , W. Zhu , G. W. Christie , J. Green , S. Hennerley , J. McCormick , L. A. G. Monard , T. Natusch , R. W. Pogge , I. Gezer , A. Gurgul , Z. Kaczmarek , M. Konacki , M. C. Lam , M. Maskoliunas , E. Pakstiene , M. Ratajczak , A. Stankeviciute , J. Zdanavicius , O. Ziółkowska

OGLE-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in Galactic Bulge

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

Bayesian Approach for Determining Microlens System Properties with High-Angular-Resolution Follow-up Imaging

We present the details of the Bayesian analysis on the planetary microlensing event MOA-2016-BLG-227, whose excess flux is likely due to a source/lens companion or an unrelated ambient star, as well as of the assumed prior distributions.…

Earth and Planetary Astrophysics · Physics 2020-05-27 Naoki Koshimoto , David P. Bennett , Daisuke Suzuki

OGLE-2005-BLG-071Lb, the Most Massive M-Dwarf Planetary Companion?

We combine all available information to constrain the nature of OGLE-2005-BLG-071Lb, the second planet discovered by microlensing and the first in a high-magnification event. These include photometric and astrometric measurements from…

Astrophysics · Physics 2010-05-12 Subo Dong , Andrew Gould , Andrzej Udalski , Jay Anderson , G. W. Christie , B. S. Gaudi , M. Jaroszynski , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , L. Wyrzykowski , D. L. DePoy , D. B. Fox , A. Gal-Yam , C. Han , S. Lepine , J. McCormick , E. Ofek , B. -G. Park , R. W. Pogge , F. Abe , D. P. Bennett , I. A. Bond , T. R. Britton , A. C. Gilmore , J. B. Hearnshaw , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , K. Masuda , Y. Matsubara , M. Motomura , Y. Muraki , S. Nakamura , K. Ohnishi , C. Okada , N. Rattenbury , To. Saito , T. Sako , M. Sasaki , D. Sullivan , T. Sumi , P. J. Tristram , T. Yanagisawa , P. C. M. Yock , T. Yoshoika , M. D. Albrow , J. P. Beaulieu , S. Brillant , H. Calitz , A. Cassan , K. H. Cook , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , J. Greenhill , K. Hill , M. Hoffman , K. Horne , U. G. Jorgensen , S. Kane , D. Kubas , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , C. Vinter , J. Wambsganss , A. Williams , M. Bode , D. M. Bramich , M. Burgdorf , C. Snodgrass , I. Steele , Vanessa Doublier , Cedric Foellmi

A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge

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

Four microlensing giant planets detected through signals produced by minor-image perturbations

We investigated the nature of the anomalies appearing in four microlensing events KMT-2020-BLG-0757, KMT-2022-BLG-0732, KMT-2022-BLG-1787, and KMT-2022-BLG-1852. The light curves of these events commonly exhibit initial bumps followed by…

Earth and Planetary Astrophysics · Physics 2024-06-18 Cheongho Han , Ian A. Bond , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Sang-Mok Cha , Doeon Kim , Dong-Jin Kim , Seung-Lee Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Fumio Abe , Ken Bando , Richard Barry , David P. Bennett , Aparna Bhattacharya , Hirosame Fujii , Akihiko Fukui , Ryusei Hamada , Shunya Hamada Naoto Hamasaki , Yuki Hirao , Stela Ishitani Silva , Yoshitaka Itow , Rintaro Kirikawa , Naoki Koshimoto , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Tutumi Nagai , Kansuke Nunota , Greg Olmschenk , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Takahiro Sumi , Daisuke Suzuki , Mio Tomoyoshi , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama , Kansuke Yamashita , Etienne Bachelet , Paolo Rota , Valerio Bozza , Paweł Zielinski , Rachel A. Street , Yiannis Tsapras , Markus Hundertmark , Joachim Wambsganss , Łukasz Wyrzykowski , Roberto Figuera Jaimes , Arnaud Cassan , Martin Dominik , Krzysztof A. Rybicki , Markus Rabus

KMT-2017-BLG-0673Lb and KMT-2019-BLG-0414Lb: Two microlensing planets detected in peripheral fields of KMTNet survey

We investigate the microlensing data collected during the 2017--2019 seasons in the peripheral Galactic bulge fields with the aim of finding planetary signals in microlensing light curves observed with relatively sparse coverage. We first…

Earth and Planetary Astrophysics · Physics 2022-10-26 Cheongho Han , Chung-Uk Lee , Andrew Gould , Youn Kil Jung , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Doeon Kim , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Hongjing Yang , 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

Microlensing search for extrasolar planets: observational strategy, discoveries and implications

Microlensing has proven to be a valuable tool to search for extrasolar planets of Jovian- to Super-Earth-mass planets at orbits of a few AU. Since planetary signals are of very short duration, an intense and continuous monitoring is…

Astrophysics · Physics 2009-11-13 Arnaud Cassan , Takahiro Sumi , Daniel Kubas

Revisiting the microlensing event OGLE 2012-BLG-0026: A solar mass star with two cold giant planets

Two cold, gas giant planets orbiting a G-type main sequence star in the galactic disk have previously been discovered in the high magnification microlensing event OGLE-2012-BLG-0026 (Han et al. 2013). Here we present revised host star flux…

Earth and Planetary Astrophysics · Physics 2016-06-22 J. P. Beaulieu , D. P. Bennett , V. Batista , A. Fukui , J. -B. Marquette , S. Brillant , A. A. Cole , L. A. Rogers , T. Sumi , F. Abe , A. Bhattacharya , N. Koshimoto , D. Suzuki , P. J. Tristram , C. Han , A. Gould , R. Pogge , J. Yee

A Cold Neptune-Mass Planet OGLE-2007-BLG-368Lb: Cold Neptunes Are Common

We present the discovery of a Neptune-mass planet OGLE-2007-BLG-368Lb with a planet-star mass ratio of q=[9.5 +/- 2.1] x 10^{-5} via gravitational microlensing. The planetary deviation was detected in real-time thanks to the high cadence of…

Earth and Planetary Astrophysics · Physics 2012-08-27 T. Sumi , D. P. Bennett , I. A. Bond , A. Udalski , V. Batista , M. Dominik , P. Fouqué , D. Kubas , A. Gould , B. Macintosh , K. Cook , S. Dong , L. Skuljan , A. Cassan , The MOA Collaboration , : , F. Abe , C. S. Botzler , 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 , M. Nagaya , T. Nagayama , K. Ohnishi , T. Okumura , Y. C. Perrott , N. Rattenbury , To. Saito , T. Sako , D. J. Sullivan , W. L. Sweatman , P. , P. C. M. Yock , The PLANET Collaboration , : , J. P. Beaulieu , A. Cole , Ch. Coutures , M. F. Duran , J. Greenhill , F. Jablonski , U. Marboeuf , E. Martioli , E. Pedretti , O. Pejcha , P. Rojo , M. D. Albrow , S. Brillant , M. Bode , D. M. Bramich , M. J. Burgdorf , J. A. R. Caldwell , H. Calitz , E. Corrales , S. Dieters , D. Dominis Prester , J. Donatowicz , K. Hill , M. Hoffman , K. Horne , U. G. J , N. Kains , S. Kane , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , C. Snodgrass , I. Steele , R. Street , Y. Tsapras , J. Wambsganss , A. Williams , M. Zub , The OGLE Collaboration , : , M. K. Szyma , M. Kubiak , G. Pietrzy , I. Soszy , O. Szewczyk , K. Ulaczyk , The microFUN Collaboration , : , W. Allen , G. W. Christie , D. L. DePoy , B. S. Gaudi , C. Han , J. Janczak , C. -U. Lee , J. McCormick , F. Mallia , B. Monard , T. Natusch , B. -G. Park , R. W. Pogge , R. Santallo

Study by MOA of extra-solar planets in gravitational microlensing events of high magnification

A search for extra-solar planets was carried out in three gravitational microlensing events of high magnification, MACHO 98-BLG-35, MACHO 99-LMC-2, and OGLE 00-BUL-12. Photometry was derived from observational images by the MOA and OGLE…

Astrophysics · Physics 2009-11-06 I. A. Bond , N. J. Rattenbury , J. Skuljan , F. Abe , R. J. Dodd , J. B. Hearnshaw , M. Honda , J. Jugaku , P. M. Kilmartin , A. Marles , K. Masuda , Y. Matsubara , Y. Muraki , T. Nakamura , G. Nankivell , S. Noda , C. Noguchi , K. Ohnishi , M. Reid , To. Saito , H. Sato , M. Sekiguchi , D. J. Sullivan , T. Sumi , M. Takeuti , Y. Watase , S. Wilkinson , R. Yamada , T. Yanagisawa , P. C. M. Yock

Characterizing Low-Mass Binaries From Observation of Long Time-scale Caustic-crossing Gravitational Microlensing Events

Despite astrophysical importance of binary star systems, detections are limited to those located in small ranges of separations, distances, and masses and thus it is necessary to use a variety of observational techniques for a complete view…

Solar and Stellar Astrophysics · Physics 2016-08-14 I. -G. Shin , C. Han , J. -Y. Choi , A. Udalski , T. Sumi , A. Gould , V. Bozza , M. Dominik , P. Fouqué , K. Horne , M. , K. Szymański , M. Kubiak , I. Soszyński , G. Pietrzyński , R. Poleski , K. Ulaczyk , P. Pietrukowicz , S. Kozłowski , J. Skowron , Ł. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , P. Chote , M. Freeman , A. Fukui , K. Furusawa , Y. Itow , S. Kobara , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , K. Ohmori , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , K. Suzuki , W. L. Sweatman , S. Takino , P. J. Tristram , K. Wada , P. C. M. Yock , D. M. Bramich , C. Snodgrass , I. A. Steele , R. A. Street , Y. Tsapras , K. A. Alsubai , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , X. -S. Fang , F. Grundahl , C. -H. Gu , S. Hardis , K. Harpsøe , T. C. Hinse , A. Hornstrup , M. Hundertmark , J. Jessen-Hansen , U. G. Jørgensen , N. Kains , E. Kerins , C. Liebig , M. Lund , M. Lunkkvist , L. Mancini , M. Mathiasen , M. T. Penny , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Southworth , J. Surdej , J. Tregloan-Reed , J. Wambsganss , O. Wertz , L. A. Almeida , V. Batista , G. Christie , D. L. DePoy , Subo Dong , B. S. Gaudi , C. Henderson , F. Jablonski , C. -U. Lee , J. McCormick , D. McGregor , D. Moorhouse , T. Natusch , H. Ngan , S. -Y. Park , R. W. Pogge , T. -G. Tan , G. Thornley , J. C. Yee , M. D. Albrow , E. Bachelet , J. -P. Beaulieu , S. Brillant , A. Cassan , A. A. Cole , E. Corrales , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , J. Greenhill , D. Kubas , J. -B. Marquette , J. W. Menzies , K. C. Sahu , M. Zub

KMT-2024-BLG-0404L: A triple microlensing system consisting of a star, a brown dwarf, and a planet

We have investigated the lensing event KMT-2024-BLG-0404. The light curve of the event exhibited a complex structure with multiple distinct features, including two prominent caustic spikes, two cusp bumps, and a brief discontinuous feature…

Earth and Planetary Astrophysics · Physics 2025-07-11 Cheongho Han , Andrzej Udalski , Chung-Uk Lee , Yoon-Hyun Ryu , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Hongjing Yang , Weicheng Zang , Doeon Kim , Dong-Jin Kim , Byeong-Gon Park , Richard W. Pogge , Przemek Mróz , Michał K. Szymański , Jan Skowron , Radosław Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof A. Rybicki , Patryk Iwanek , Krzysztof Ulaczyk , Marcin Wrona , Mariusz Gromadzki , Mateusz J. Mróz , Michał Jaroszyński

Ground-based parallax confirmed by Spitzer: binary microlensing event MOA-2015-BLG-020

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

Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star

We analyze the extreme high-magnification microlensing event OGLE-2008-BLG-279, which peaked at a maximum magnification of A ~ 1600 on 30 May 2008. The peak of this event exhibits both finite-source effects and terrestrial parallax, from…

Earth and Planetary Astrophysics · Physics 2015-05-13 J. C. Yee , A. Udalski , T. Sumi , Subo Dong , S. Kozłowski , J. C. Bird , A. Cole , D. Higgins , J. McCormick , B. Monard , D. Polishook , A. Shporer , O. Spector , the OGLE , the microFUN , the MOA , the PLANET Collaboration

An Earth-Mass Planet and a Brown Dwarf in Orbit Around a White Dwarf

Terrestrial planets born beyond 1-3 AU have been theorized to avoid being engulfed during the red-giant phases of their host stars. Nevertheless, only a few gas-giant planets have been observed around white dwarfs (WDs) -- the end product…

Earth and Planetary Astrophysics · Physics 2024-10-07 Keming Zhang , Weicheng Zang , Kareem El-Badry , Jessica R. Lu , Joshua S. Bloom , Eric Agol , B. Scott Gaudi , Quinn Konopacky , Natalie LeBaron , Shude Mao , Sean Terry

KMT-2016-BLG-1836Lb: A Super-Jovian Planet From A High-Cadence Microlensing Field

We report the discovery of a super-Jovian planet in the microlensing event KMT-2016-BLG-1836, which was found by the Korea Microlensing Telescope Network's high-cadence observations (\Gamma ~ 4~{hr}^{-1}). The planet-host mass ratio q ~…

Earth and Planetary Astrophysics · Physics 2020-02-19 Hongjing Yang , Xiangyu Zhang , Kyu-Ha Hwang , Weicheng Zang , Andrew Gould , Tianshu Wang , Shude Mao , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Youn Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , Wei Zhu , Matthew T. Penny , Pascal Fouqué , 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

Confirmation of the OGLE-2005-BLG-169 planet signature and characteristics with lens-source proper motion detection

We present Keck NIRC2 high angular resolution adaptive optics observations of the microlensing event OGLE-2005-BLG-169, taken 8.21 years after the discovery of this planetary system. For the first time for a microlensing planetary event,…

Earth and Planetary Astrophysics · Physics 2015-08-03 V. Batista , J. -P. Beaulieu , D. P. Bennett , A. Gould , J. -B. Marquette , A. Fukui , A. Bhattacharya

Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050

We analyze OGLE-2007-BLG-050, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects. We compute planet detection efficiencies for this event in order to…

Earth and Planetary Astrophysics · Physics 2010-10-19 V. Batista , Subo Dong , A. Gould , J. P. Beaulieu , A. Cassan , G. W. Christie , C. Han , A. Udalski , W. Allen , D. L. DePoy , A. Gal-Yam , B. S. Gaudi , B. Johnson , S. Kaspi , C. U. Lee , D. Maoz , J. McCormick , I. McGreer , B. Monard , T. Natusch , E. Ofek , B. -G. Park , R. W. Pogge , D. Polishook , A. Shporer , M. D. Albrow , D. P. Bennett , S. Brillant , M. Bode , D. M. Bramich , M. Burgdorf , J. A. R. Caldwell , H. Calitz , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , M. Dominik , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , K. Horne , U. G. Jørgensen , N. Kains , S. Kane , D. Kubas , J. B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , C. Snodgrass , I. Steele , Y. Tsapras , J. Wambsganss , A. Williams , M. Zub , Ł. Wyrzykowski , M. Kubiak , M. K. Szymański , G. Pietrzyński , I. Soszyński , O. Szewczyk , K. Ulaczyk , F. Abe , I. A. Bond , A. Fukui , K. Furusawa , J. B. Hearnshaw , S. Holderness , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , K. Ohnishi , T. Okumura , Y. C. Perrott , N. Rattenbury , To. Saito , T. Sako , L. Skuljan , D. Sullivan , T. Sumi , W. L. Sweatman , P. J. Tristram , P. C. M. Yock

Simulation of a Space-Based Microlensing Survey for Terrestrial Extra-Solar Planets

We show that a space-based gravitational microlensing survey for terrestrial extra-solar planets is feasible in the near future, and could provide a nearly complete picture of the properties of planetary systems in our Galaxy. We present…

Astrophysics · Physics 2009-10-31 David P. Bennett , Sun Hong Rhie