Related papers: OGLE-2002-BLG-360: from a gravitational microlensi…

OGLE-2002-BLG-360: a dusty anomaly among red nova remnants

OGLE-2002-BLG-360 is an example of a Galactic red nova, the aftermath of a non-compact stellar merger. The dusty nature of the circumstellar environment makes observations of this particular source difficult, meaning the properties of the…

Solar and Stellar Astrophysics · Physics 2025-07-23 T. Steinmetz , T. Kamiński , C. Melis , N. Blagorodnova , M. Gromadzki , K. Menten , K. Su

The repeating microlensing event OGLE-2003-BLG-095: A plausible case for microlensing of a binary source

The apparently repeating microlensing event OGLE-2003-BLG-095 is analyzed. Data were obtained from the OGLE Internet archive and exist in the public domain. The source is relatively bright, with an unmagnified (but possibly blended)…

Astrophysics · Physics 2007-05-23 Matthew J. Collinge

OGLE 2003-BLG-235/MOA 2003-BLG-53: A planetary microlensing event

We present observations of the unusual microlensing event OGLE 2003-BLG-235/MOA 2003-BLG-53. In this event a short duration (~7 days) low amplitude deviation in the light curve due a single lens profile was observed in both the MOA and OGLE…

Astrophysics · Physics 2009-11-10 I. A. Bond , A. Udalski , M. Jaroszynski , N. J. Rattenbury , B. Paczynski , I. Soszynski , L. Wyrzykowski , M. K. Szymanski , M. Kubiak , O. Szewczyk , K. Zebrun , G. Pietrzynski , F. Abe , D. P. Bennett , S. Eguchi , Y. Furuta , J. B. Hearnshaw , K. Kamiya , P. M. Kilmartin , Y. Kurata , K. Masuda , Y. Matsubara , Y. Muraki , S. Noda , K. Okajima , T. Sako , T. Sekiguchi , D. J. Sullivan , T. Sumi , P. J. Tristram , T. Yanagisawa , P. C. M. Yock

Discovery of a Gas giant Planet in Microlensing Event OGLE-2014-BLG-1760

We present the analysis of the planetary microlensing event OGLE-2014-BLG-1760, which shows a strong light curve signal due to the presence of a Jupiter mass-ratio planet. One unusual feature of this event is that the source star is quite…

Earth and Planetary Astrophysics · Physics 2016-11-09 A. Bhattacharya , D. P. Bennett , I. A. Bond , T. Sumi , A. Udalski , R. Street , Y. Tsapras , F. Abe , M. Freeman , A. Fukui , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , K. Ohnishi , L. C. Philpott , N. Rattenbury , T. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , M. K. Szymański , I. Soszyński , R. Poleski , S. Kozlowski , P. Pietrukowicz , K. Ulaczyk , L. Wyrzykowski , E Bachelet , D. M. Bramich , G. D' Ago , M. Dominik , R. Figuera Jaimes , K. Horne , M. Hundertmark , N. Kains , J. Menzies , R. Schmidt , C. Snodgrass , I. A. Steele , J Wambsganss

OGLE-2015-BLG-1609Lb: Sub-jovian planet orbiting a low-mass stellar or brown dwarf host

We present a comprehensive analysis of a planetary microlensing event OGLE-2015-BLG-1609. The planetary anomaly was detected by two survey telescopes, OGLE and MOA. Each of these surveys collected enough data over the planetary anomaly to…

Earth and Planetary Astrophysics · Physics 2025-06-18 M. J. Mróz , R. Poleski , A. Udalski , T. Sumi , Y. Tsapras , M. Hundertmark , P. Pietrukowicz , M. K. Szymański , J. Skowron , P. Mróz , M. Gromadzki , P. Iwanek , S. Kozłowski , M. Ratajczak , K. A. Rybicki , D. M. Skowron , I. Soszyński , K. Ulaczyk , M. Wrona , F. Abe , K. Bando , D. P. Bennett , A. Bhattacharya , I. A. Bond , A. Fukui , R. Hamada , S. Hamada , N. Hamasaki , Y. Hirao , S. Ishitani Silva , Y. Itow , N. Koshimoto , Y. Matsubara , S. Miyazaki , Y. Muraki , T. Nagai , K. Nunota , G. Olmschenk , C. Ranc , N. J. Rattenbury , Y. Satoh , D. Suzuki , S. K. Terry , P. J. Tristram , A. Vandorou , H. Yama , R. A. Street , E. Bachelet , M. Dominik , A. Cassan , R. Figuera Jaimes , K. Horne , R. Schmidt , C. Snodgrass , J. Wambsganss , I. A. Steele , J. Menzies , U. G. Jørgensen , P. Longa-Peña , N. Peixinho , J. Skottfelt , J. Southworth , M. I. Andersen , V. Bozza , M. J. Burgdorf , G. D'Ago , T. C. Hinse , E. Kerins , H. Korhonen , M. Küffmeier , L. Mancini , M. Rabus , S. Rahvar

High-resolution spectroscopic follow-up of OGLE planetary transit candidates in the Galactic bulge: two possible Jupiter-mass planets and two blends

We report the results of our campaign to follow-up spectroscopically several candidate extrasolar transiting planets from the OGLE-III survey in the direction of the Galactic center, announced in 2001 (Udalski et al 2002a,b). All of these…

Astrophysics · Physics 2009-11-10 Maciej Konacki , Guillermo Torres , Dimitar D. Sasselov , Saurabh Jha

The Optical Gravitational Lensing Experiment. Additional Planetary and Low-Luminosity Object Transits from the OGLE 2001 and 2002 Observational Campaigns

The photometric data collected by OGLE-III during the 2001 and 2002 observational campaigns aiming at detection of planetary or low-luminosity object transits were corrected for small scale systematic effects using the data pipeline by…

Astrophysics · Physics 2007-05-23 A. Udalski , G. Pietrzynski , M. Szymanski , M. Kubiak , K. Zebrun , I. Soszynski , O. Szewczyk , L. Wyrzykowski

Spectroscopic characterisation of microlensing events Towards a new interpretation of OGLE-2011-BLG-0417

The microlensing event OGLE-2011-BLG-0417 is an exceptionally bright lens binary that was predicted to present radial velocity variation at the level of several km/s. Pioneer radial velocity follow-up observations with the UVES spectrograph…

Earth and Planetary Astrophysics · Physics 2016-11-23 A. Santerne , J. -P. Beaulieu , B. Rojas Ayala , I. Boisse , E. Schlawin , J. -M. Almenara , V. Batista , D. Bennett , R. F. Díaz , P. Figueira , D. J. James , T. Herter , J. Lillo-Box , J. B. Marquette , C. Ranc , N. C. Santos , S. G. Sousa

OGLE-2015-BLG-1771Lb: A Microlens Planet Orbiting an Ultracool Dwarf?

We report the discovery and the analysis of the short (tE < 5 days) planetary microlensing event, OGLE-2015-BLG-1771. The event was discovered by the Optical Gravitational Lensing Experiment (OGLE), and the planetary anomaly (at I ~ 19) was…

Earth and Planetary Astrophysics · Physics 2020-03-04 Xiangyu Zhang , Weicheng Zang , Andrzej Udalski , Andrew Gould , Yoon-Hyun Ryu , Tianshu Wang , Hongjing Yang , Shude Mao , Przemek Mróz , Jan Skowron , Radoslaw Poleski , Michał K. Szymański , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Michael D. Albrow , Sun-Ju Chung , Cheongho Han , Kyu-Ha Hwang , Youn Kil Jung , In-Gu Shin , Yossi Shvartzvald , Jennifer C. Yee , 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

OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects

We undertake a project to reexamine microlensing data gathered from high-cadence surveys. The aim of the project is to reinvestigate lensing events with light curves exhibiting intricate anomaly features associated with caustics, yet…

Solar and Stellar Astrophysics · Physics 2024-04-10 Cheongho Han , Andrzej Udalski , Ian A. Bond , Chung-Uk Lee , Andrew Gould , Michael D. Albrow , Sun-Ju Chung , Kyu-Ha Hwang , Youn Kil Jung , Hyoun-Woo Kim , 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 , 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 , 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

OGLE-2013-BLG-0102LA,B: Microlensing binary with components at star/brown-dwarf and brown-dwarf/planet boundaries

We present the analysis of the gravitational microlensing event OGLE-2013-BLG-0102. The light curve of the event is characterized by a strong short-term anomaly superposed on a smoothly varying lensing curve with a moderate magnification…

Solar and Stellar Astrophysics · Physics 2015-06-22 Y. K. Jung , A. Udalski , T. Sumi , C. Han , A. Gould , J. Skowron , S. Kozłowski , R. Poleski , Ł. Wyrzykowski , M. K. Szymański , G. Pietrzyński , I. Soszyński , K. Ulaczyk , P. Pietrukowicz , P. Mróz , M. Kubiak , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , N. Koshimoto , P. Larsen , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , L. Philpott , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , P. J. Tristram , N. Tsurumi , K. Wada , N. Yamai , P. C. M. Yock , A. Yonehara , M. Albrow , J. -Y. Choi , D. L. DePoy , B. S. Gaudi , K. -H. Hwang , C. -U. Lee , H. Park , S. Owen , R. W. Pogge , I. -G. Shin , J. C. Yee

The Optical Gravitational Lensing Experiment. Search for Planetary and Low-Luminosity Object Transits in the Galactic Disk. Results of 2001 Campaign - Supplement

The photometric data collected during 2001 season OGLE-III planetary/low luminosity object transit campaign were reanalyzed with the new transit search technique -- the BLS method by Kovacs, Zucker and Mazeh. In addition to all presented in…

Astrophysics · Physics 2007-05-23 A. Udalski , K. Zebrun , M. Szymanski , M. Kubiak , I. Soszynski , O. Szewczyk , L. Wyrzykowski , G. Pietrzynski

Faint source star planetary microlensing: the discovery of the cold gas giant planet OGLE-2014-BLG-0676Lb

We report the discovery of a planet --- OGLE-2014-BLG-0676Lb --- via gravitational microlensing. Observations for the lensing event were made by the MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and $\mu$FUN groups. All analyses of the light…

Earth and Planetary Astrophysics · Physics 2016-12-13 N. J. Rattenbury , D. P. Bennett , T. Sumi , N. Koshimoto , I. A. Bond , A. Udalski , Y. Shvartzvald , D. Maoz , U. G. Jorgensen , M. Dominik , R. A. Street , Y. Tsapras , F. Abe , Y. Asakura , R. Barry , A. Bhattacharya , M. Donachie , P. Evans , M. Freeman , A. Fukui , Y. Hirao , Y. Itow , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , To. Saito , A. Sharan , D. J. Sullivan , D. Suzuki , P. J. Tristram , A. Yonehara , R. Poleski , J. Skowron , P. Mroz , M. K. Szymanski , I. Soszynski , P. Pietrukowicz , S. Kozlowski , K. Ulaczyk , L. Wyrzykowski , M. Friedmann , S. Kaspi , K. Alsubai , P. Browne , J. M. Andersen , V. Bozza , S. Calchi Novati , Y. Damerdji , C. Diehl , S. Dreizler , A. Elyiv , E. Giannini , S. Hardis , K. Harpsoe , T. C. Hinse , C. Liebig , M. Hundertmark , D. Juncher , N. Kains , E. Kerins , H. Korhonen , L. Mancini , R. Martin , M. Mathiasen , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , C. Snodgrass , J. Surdej , J. Taylor , J. Tregloan-Reed , C. Vilela , J. Wambsganss , A. Williams , G. D'Ago , E. Bachelet , D. M. Bramich , R. Figuera Jaimes , K. Horne , J. Menzies , R. Schmidt , I. A. Steele

X-ray observations of the isolated black hole candidate OGLE-2011-BLG-0462 , and other collapsed objects discovered through gravitational microlensing

Isolated black holes and neutron stars can be revealed through the observation of long duration gravitational microlensing events. A few candidates have been found in surveys of stars in the direction of the Galactic bulge. Recently, thanks…

High Energy Astrophysical Phenomena · Physics 2022-08-03 Sandro Mereghetti , Lara Sidoli , Gabriele Ponti , Aldo Treves

OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field

We present the analysis of the microlensing event OGLE-2015-BLG-1670, detected in a high-extinction field, very close to the Galactic plane. Due to the dust extinction along the line of sight, this event was too faint to be detected before…

Earth and Planetary Astrophysics · Physics 2019-06-26 Clément Ranc , David P. Bennett , Yuki Hirao , Andrzej Udalski , Cheongho Han , Ian A. Bond , Jennifer C. Yee , The KMTNet Collaboration , : , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Youn-Kil Jung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Weicheng Zang , Wei Zhu , Sang-Mok Cha , Dong-Jin Kim , Hyoun-Woo Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yong-Seok Lee , Byeong-Gon Park , Richard W. Pogge , The MOA Collaboration , : , Fumio Abe , Richard K. Barry , Aparna Bhattacharya , Martin Donachie , Akihiko Fukui , Yoshitaka Itow , Kohei Kawasaki , Iona Kondo , Naoki Koshimoto , Man Cheung Alex Li , Yutaka Matsubara , Shota Miyazaki , Yasushi Muraki , Masayuki Nagakane , Nicholas J. Rattenbury , Haruno Suematsu , Denis J. Sullivan , Takahiro Sumi , Daisuke Suzuki , Paul J. Tristram , Atsunori Yonehara , The OGLE Collaboration , : , Radosław Poleski , Przemek Mróz , Jan Skowron , Michał K. Szymański , Igor Soszyński , Szymon Kozłowski , Paweł Pietrukowicz , Krzysztof Ulaczyk

The Optical Gravitational Lensing Experiment. OGLE #7: Binary Microlens or a New Unusual Variable?

We present the light curve of an unusual variable object, OGLE #7, detected during the OGLE search for microlensing events. After one season of being in a low, normal state, the star brightened by more than 2~mag with a characteristic…

Astrophysics · Physics 2009-10-22 A. Udalski , M. Szymanski , S. Mao , R. Di Stefano , J. Kaluzny , M. Kubiak , M. Mateo , W. Krzeminski

OGLE-2009-BLG-023/MOA-2009-BLG-028: Characterization of a Binary Microlensing Event Based on Survey Data

We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine…

Solar and Stellar Astrophysics · Physics 2015-05-28 K. -H. Hwang , C. Han , A. Udalski , T. Sumi , A. Gould , M. Jaroszynski , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , K. Ulaczyk , L. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , K. Furusawa , J. B. Hearnshaw , Y. Itow , K. Kamiya , P. M. Kilmartin , A. Korpela , W. Lin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , K. Ohnishi , Y. C. Perrott , N. J. Rattenbury , To. Saito , T. Sako , D. J. Sullivan , W. L. Sweatman , P. J. Tristram , P. C. M. Yock

Reanalyses of Anomalous Gravitational Microlensing Events in the OGLE-III Early Warning System Database with Combined Data

We reanalyze microlensing events in the published list of anomalous events that were observed from the OGLE lensing survey conducted during 2004-2008 period. In order to check the existence of possible degenerate solutions and extract extra…

Earth and Planetary Astrophysics · Physics 2015-06-24 J. Jeong , H. Park , C. Han , A. Gould , A. Udalski , M. K. Szymański , G. Pietrzyński , I. Soszyński , R. Poleski , K. Ulaczyk , Ł. Wyrzykowski , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , D. Fukunaga , Y. Itow , N. Koshimoto , K. Masuda , Y. Matsubara , Y. Muraki , S. Namba , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , W. L. Sweatman , T. Sumi , D. Suzuki , P. J. Tristram , N. Tsurumi , K. Wada , N. Yamai , P. C. M. Yock , A. Yonehara , M. D. Albrow , V. Batista , J. -P. Beaulieu , J. A. R. Caldwell , A. Cassan , A. Cole , C. Coutures , S. Dieters , M. Dominik , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , M. Huber , U. G. Jørgensen , S. R. Kane , D. Kubas , R. Martin , J. -B. Marquette , J. Menzies , C. Pitrou , K. Pollard , K. C. Sahu , C. Vinter , J. Wambsganss , A. Williams , W. Allen , G. Bolt , J. -Y. Choi , G. W. Christie , D. L. DePoy , J. Drummond , B. S. Gaudi , K. -H. Hwang , Y. K. Jung , C. -U. Lee , F. Mallia , D. Maoz , A. Maury , J. McCormick , L. A. G. Monard , D. Moorhouse , T. Natusch , E. O. Ofek , B. -G. Park , R. W. Pogge , R. Santallo , I. -G. Shin , G. Thornley , J. C. Yee , A. Allan , D. M. Bramich , M. J. Burgdorf , K. Horne , M. Hundertmark , N. Kains , C. Snodgrass , I. Steele , R. Street , Y. Tsapras

Characterizing Lenses and Lensed Stars of High-Magnification Single-lens Gravitational Microlensing Events With Lenses Passing Over Source Stars

We present the analysis of the light curves of 9 high-magnification single-lens gravitational microlensing events with lenses passing over source stars, including OGLE-2004-BLG-254, MOA-2007-BLG-176, MOA-2007-BLG-233/OGLE-2007-BLG-302,…

Solar and Stellar Astrophysics · Physics 2015-06-03 J. -Y. Choi , I. -G. Shin , S. -Y. Park , C. Han , A. Gould , T. Sumi , A. Udalski , J. -P. Beaulieu , R. Street , M. Dominik , W. Allen , L. A. Almeida , M. Bos , G. W. Christie , D. L. Depoy , S. Dong , J. Drummond , A. Gal-Yam , B. S. Gaudi , C. B. Henderson , L. -W. Hung , F. Jablonski , J. Janczak , C. -U. Lee , F. Mallia , A. Maury , J. McCormick , D. McGregor , L. A. G. Monard , D. Moorhouse , J. A. Muñoz , T. Natusch , C. Nelson , B. -G. Park , R. W. Pogge , T. -G. "TG" Tan , G. Thornley , J. C. Yee , F. Abe , E. Barnard , J. Baudry , D. P. Bennett , I. A. Bond , C. S. Botzler , M. Freeman , A. Fukui , K. Furusawa , F. Hayashi , J. B. Hearnshaw , S. Hosaka , Y. Itow , K. Kamiya , P. M. Kilmartin , S. Kobara , A. Korpela , W. Lin , C. H. Ling , S. Makita , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , M. Nagaya , K. Nishimoto , K. Ohnishi , T. Okumura , K. Omori , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , D. Suzuki , K. Suzuki , W. L. Sweatman , S. Takino , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymański , M. Kubiak , G. Pietrzyński , I. Soszyński , R. Poleski , K. Ulaczyk , Ł. Wyrzykowski , S. Kozłowski , P. Pietrukowicz , M. D. Albrow , E. Bachelet , V. Batista , C. S. Bennett , R. Bowens-Rubin , S. Brillant , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , S. R. Kane , J. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub , A. Allan , D. M. Bramich , P. Browne , N. Clay , S. Fraser , K. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , Y. Tsapras , K. A. Alsubai , V. Bozza , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , M. Glitrup , F. Grundahl , S. Hardis , K. Harpsøe , T. C. Hinse , M. Hundertmark , U. G. Jørgensen , E. Kerins , C. Liebig , G. Maier , L. Mancini , M. Mathiasen , M. T. Penny , S. Proft , S. Rahvar , D. Ricci , G. Scarpetta , S. Schäfer , F. Schönebeck , J. Skottfelt , J. Surdej , J. Southworth , F. Zimmer

The Many Possible Interpretations of Microlensing Event OGLE-2002-BLG-055

Microlensing event OGLE-2002-BLG-055 is characterized by a smooth, slightly asymmetric single-lens curve with an isolated, secure data point that is ~0.6 magnitudes brighter than neighboring points separated by a few days. It was previously…

Astrophysics · Physics 2008-11-26 B. Scott Gaudi , Cheongho Han