Related papers: Assessing the Impact of Binary Systems on Microlen…

Microlensing time-scales and flux magnification probabilities of a sample of 204 lensed quasars

Quasar microlensing is both a very useful tool in cosmology and astrophysics, and a source of uncertainty in some studies like the determination of the Hubble constant from lensed quasars. Microlensing probability and time-scales have been…

Astrophysics of Galaxies · Physics 2026-05-06 F. Ávila-Vera , V. Motta , E. Mediavilla

Microlensing Binaries Discovered through High-Magnification Channel

Microlensing can provide a useful tool to probe binary distributions down to low-mass limits of binary companions. In this paper, we analyze the light curves of 8 binary lensing events detected through the channel of high-magnification…

Solar and Stellar Astrophysics · Physics 2015-05-30 I. -G. Shin , J. -Y. Choi , S. -Y. Park , C. Han , A. Gould , T. Sumi , A. Udalski , J. -P. Beaulieu , M. Dominik , W. Allen , M. Bos , G. W. Christie , D. L. Depoy , S. Dong , J. Drummond , A. Gal-Yam , B. S. Gaudi , L. -W. Hung , J. Janczak , S. Kaspi , C. -U. Lee , F. Mallia , D. Maoz , A. Maury , J. McCormick , L. A. G. Monard , D. Moorhouse , J. A. Muñoz , T. Natusch , C. Nelson , B. -G. Park , R. W. Pogge , D. Polishook , Y. Shvartzvald , A. Shporer , G. Thornley , J. C. Yee , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , 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 , W. L. Sweatman , 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 , V. Batista , D. M. Bramich , S. Brillant , J. A. R. Caldwell , J. J. Calitz , A. Cassan , A. Cole , K. H. Cook , E. Corrales , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouqué , J. Greenhill , M. Hoffman , U. G. Jørgensen , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , P. Meintjes , J. Menzies , K. R. Pollard , K. C. Sahu , J. Wambsganss , A. Williams , C. Vinter , M. Zub , A. Allan , P. Browne , K. Horne , C. Snodgrass , I. Steele , R. Street , Y. Tsapras , K. A. Alsubai , V. Bozza , P. Browne , M. J. Burgdorf , S. Calchi Novati , P. Dodds , S. Dreizler , F. Finet , T. Gerner , M. Glitrup , F. Grundahl , S. Hardis , K. Harpsøe , F. V. Hessman , T. C. Hinse , M. Hundertmark , N. Kains , 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

Self-lensing binaries in globular clusters -- predictions for ELT

Self-lensing (SL) represents a powerful technique for detecting compact objects in binary systems through gravitational microlensing effects, when a compact companion transits in front of its luminous partner. We present the first…

Astrophysics of Galaxies · Physics 2025-10-06 Grzegorz Wiktorowicz , Matthew Middleton , Mirek Giersz , Adam Ingram , Adam McMaster , Abbas Askar , Lucas Hellström

Spitzer as Microlens Parallax Satellite: Mass and Distance Measurements of Binary Lens System OGLE-2014-BLG-1050L

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

Search for binary central stars of the SMC PNe

The Optical Gravitational Lensing Experiment (OGLE), originally designed to search for microlensing events, provides a rich and uniform data set suitable for studying the variability of certain types of objects. We used the OGLE data to…

Solar and Stellar Astrophysics · Physics 2013-12-23 M. Hajduk , M. Gladkowski , I. Soszyński

OGLE-2016-BLG-0168 Binary Microlensing Event: Prediction and Confirmation of the Micorlens Parallax Effect from Space-based Observation

The microlens parallax is a crucial observable for conclusively identifying the nature of lens systems in microlensing events containing or composed of faint (even dark) astronomical objects such as planets, neutron stars, brown dwarfs, and…

Solar and Stellar Astrophysics · Physics 2017-10-11 I. -G. Shin , A. Udalski , J. C. Yee , S. Calchi Novati , C. Han , J. Skowron , P. Mróz , I. Soszyński , R. Poleski , M. K. Szymański , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak , M. D. Albrow , A. Gould , S. -J. Chung , K. -H. Hwang , Y. K. Jung , Y. -H. Ryu , W. Zhu , S. -M. Cha , D. -J. Kim , H. -W. Kim , S. -L. Kim , C. -U. Lee , Y. Lee , B. -G. Park , R. W. Pogge , C. Beichman , G. Bryden , S. Carey , B. S. Gaudi , C. B. Henderson , Y. Shvartzvald

Predicting the self-lensing population in optical surveys

The vast majority of binaries containing a compact object and a regular star spend most of their time in a quiescent state where no strong interactions occur between components. Detection of these binaries is extremely challenging and only…

High Energy Astrophysical Phenomena · Physics 2021-08-18 Grzegorz Wiktorowicz , Matthew Middleton , Norman Khan , Adam Ingram , Poshak Gandhi , Hugh Dickinson

Binary microlensing event OGLE-2009-BLG-020 gives a verifiable mass, distance and orbit predictions

We present the first example of binary microlensing for which the parameter measurements can be verified (or contradicted) by future Doppler observations. This test is made possible by a confluence of two relatively unusual circumstances.…

Solar and Stellar Astrophysics · Physics 2015-05-27 J. Skowron , A. Udalski , A. Gould , Subo Dong , L. A. G. Monard , C. Han , C. R. Nelson , J. McCormick , D. Moorhouse , G. Thornley , A. Maury , D. M. Bramich , J. Greenhill , S. Kozlowski , I. Bond , R. Poleski , L. Wyrzykowski , K. Ulaczyk , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , B. S. Gaudi , J. C. Yee , L. -W. Hung , R. W. Pogge , D. L. DePoy , C. -U. Lee , B. -G. Park , W. Allen , F. Mallia , J. Drummond , G. Bolt , A. Allan , P. Browne , N. Clay , M. Dominik , S. Fraser , K. Horne , N. Kains , C. Mottram , C. Snodgrass , I. Steele , R. A. Street , Y. Tsapras , F. Abe , D. P. Bennett , C. S. Botzler , D. Douchin , M. Freeman , A. Fukui , K. Furusawa , 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 , N. Miyake , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , T. Sumi , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , J. -P. Beaulieu , P. Fouque , M. D. Albrow , V. Batista , S. Brillant , J. A. R. Caldwell , A. Cassan , A. Cole , K. H. Cook , Ch. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , S. R. Kane , D. Kubas , J. -B. Marquette , R. Martin , J. Menzies , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub

Optical Gravitational Lensing Experiment. OGLE-1999-BUL-19: The First Multi-Peak Parallax Event

We describe a highly unusual microlensing event, OGLE-1999-BUL-19, which exhibits multiple peaks in its light curve. The Einstein radius crossing time for this event is approximately one year, which is unusually long. We show that the…

Astrophysics · Physics 2009-11-07 M. C. Smith , S. Mao , P. Wozniak , A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , K. Zebrun

Planetary and Other Short Binary Microlensing Events from the MOA Short Event Analysis

We present the analysis of four candidate short duration binary microlensing events from the 2006-2007 MOA Project short event analysis. These events were discovered as a byproduct of an analysis designed to find short timescale single lens…

Earth and Planetary Astrophysics · Physics 2012-09-13 D. P. Bennett , T. Sumi , I. A. Bond , K. Kamiya , F. Abe , C. S. Botzler , A. Fukui , K. Furusawa , Y. Itow , A. V. Korpela , P. M. Kilmartin , C. H. Ling , K. Masuda , Y. Matsubara , N. Miyake , Y. Muraki , K. Ohnishi , N. J. Rattenbury , To. Saito , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock

Binary Lenses in OGLE III EWS Database. Season 2005

We present nine new binary lens candidates from OGLE-III Early Warning System database for the season of 2005. We have also found four events interpreted as single mass lensing of double sources. The candidates have been selected by visual…

Astrophysics · Physics 2009-06-23 J. Skowron , M. Jaroszynski , A. Udalski , M. Kubiak , M. K. Szymanski , G. Pietrzynski , I. Soszynski , O. Szewczyk , L. Wyrzykowski , K. Ulaczyk

Applications of Microlensing to Stellar Astrophysics

Over the past decade, microlensing has developed into a powerful tool to study stellar astrophysics, especially stellar atmospheres, stellar masses, and binarity. I review this progress. Stellar atmospheres can be probed whenever the source…

Astrophysics · Physics 2016-08-30 Andrew Gould

OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis

We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two distinct peaks with perturbations near both peaks. We find…

Solar and Stellar Astrophysics · Physics 2015-05-19 Y. -H. Ryu , C. Han , K. -H. Hwang , R. Street , A. Udalski , T. Sumi , A. Fukui , J. -P. Beaulieu , A. Gould , M. Dominik , F. Abe , D. P. Bennett , I. A. Bond , C. S. Botzler , K. Furusawa , 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 , N. Miyake , Y. Muraki , K. Nishimoto , K. Ohnishi , Y. C. Perrott , N. Rattenbury , To. Saito , L. Skuljan , D. J. Sullivan , D. Suzuki , W. L. Sweatman , P. J. Tristram , K. Wada , P. C. M. Yock , M. K. Szymański , M. Kubiak , G. Pietrzyński , I. Soszyński , O. Szewczyk , Ł. Wyrzykowski , K. Ulaczyk , M. Bos , G. W. Christie , D. L. Depoy , A. Gal-Yam , B. S. Gaudi , S. Kaspi , C. -U. Lee , D. Maoz , J. McCormick , B. Monard , D. Moorhouse , R. W. Pogge , D. Polishook , Y. Shvartzvald , A. Shporer , G. Thornley , J. C. Yee , M. D. Albrow , V. Batista , S. Brillant , A. Cassan , A. Cole , E. Corrales , Ch. Coutures , S. Dieters , P. Fouqué , J. Greenhill , J. Menzies , A. Allan , D. M. Bramich , P. Browne , K. Horne , N. Kains , C. Snodgrass , I. Steele , Y. Tsapras , V. Bozza , M. J. Burgdorf , S. Calchi Novati , S. Dreizler , F. Finet , M. Glitrup , F. Grundahl , K. Harpsøe , F. V. Hessman , T. C. Hinse , M. Hundertmark , U. G. Jørgensen , C. Liebig , G. Maier , L. Mancini , M. Mathiasen , S. Rahvar , D. Ricci , G. Scarpetta , J. Skottfelt , J. Surdej , J. Southworth , J. Wambsganss , F. Zimmer

Photometric, Astrometric and Polarimetric observations of gravitational microlensing events

The gravitational microlensing as a unique astrophysical tool can be used for studying the atmosphere of stars thousands of parsec far from us. This capability results from the bending of light rays in the gravitational field of a lens…

Solar and Stellar Astrophysics · Physics 2015-08-06 Sedighe Sajadian , Sohrab Rahvar

The Optical Gravitational Lensing Experiment. Photometry of the MACHO-SMC-98-1 Binary Microlensing Event

We present photometry of the unique binary microlensing event MACHO-SMC-98-1 collected by the OGLE group. Particularly interesting observation was made close to the first caustic crossing which was not covered by observations of other…

Astrophysics · Physics 2007-05-23 A. Udalski , M. Kubiak , M. Szymanski , G. Pietrzynski , P. Wozniak , K. Zebrun

The Nature of Parallax Microlensing Events Towards the Galactic Bulge

Perhaps as many as 30 parallax microlensing events are known, thanks to the efforts of the MACHO, OGLE, EROS and MOA experiments monitoring the bulge. Using Galactic models, we construct mock catalogues of microlensing light curves towards…

Astrophysics · Physics 2009-11-11 M. C. Smith , V. Belokurov , N. W. Evans , S. Mao , J. H. An

Astrometric Detection of Double Gravitational Microlensing Events

If a gravitational microlensing event is caused by a widely separated binary lens and the source approaches both lens components, the source flux is successively magnified by the individual lenses: double microlensing events. If events are…

Astrophysics · Physics 2009-11-07 Cheongho Han , Byeong-Gon Park , Wonyong Han , Young Woon Kang

OGLE-2017-BLG-0537: Microlensing Event with a Resolvable Lens in $\lesssim 5$ years from High-resolution Follow-up Observations

We present the analysis of the binary-lens microlensing event OGLE-2017-BLG-0537. The light curve of the event exhibits two strong caustic-crossing spikes among which the second caustic crossing was resolved by high-cadence surveys. It is…

Solar and Stellar Astrophysics · Physics 2018-08-15 Y. K. Jung , C. Han , A. Udalski , A. Gould , M. D. Albrow , S. -J. Chung , K. -H. Hwang , C. -U. Lee , 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 , P. Mróz , R. Poleski , J. Skowron , M. K. Szymański , I. Soszyński , S. Kozłowski , P. Pietrukowicz , K. Ulaczyk , M. Pawlak

Detectability of Orbital Motion in Stellar Binary and Planetary Microlenses

A standard binary microlensing event lightcurve allows just two parameters of the lensing system to be measured: the mass ratio of the companion to its host, and the projected separation of the components in units of the Einstein radius.…

Astrophysics of Galaxies · Physics 2011-03-17 Matthew T. Penny , Shude Mao , Eamonn Kerins

Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye

Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct…

Solar and Stellar Astrophysics · Physics 2020-01-22 Łukasz Wyrzykowski , P. Mróz , K. A. Rybicki , M. Gromadzki , Z. Kołaczkowski , M. Zieliński , P. Zieliński , N. Britavskiy , A. Gomboc , K. Sokolovsky , S. T. Hodgkin , L. Abe , G. F. Aldi , A. AlMannaei , G. Altavilla , A. Al Qasim , G. C. Anupama , S. Awiphan , E. Bachelet , V. Bakıs , S. Baker , S. Bartlett , P. Bendjoya , K. Benson , I. F. Bikmaev , G. Birenbaum , N. Blagorodnova , S. Blanco-Cuaresma , S. Boeva , A. Z. Bonanos , V. Bozza , D. M. Bramich , I. Bruni , R. A. Burenin , U. Burgaz , T. Butterley , H. E. Caines , D. B. Caton , S. Calchi Novati , J. M. Carrasco , A. Cassan , V. Cepas , M. Cropper , M. Chruślińska , G. Clementini , A. Clerici , D. Conti , M. Conti , S. Cross , F. Cusano , G. Damljanovic , A. Dapergolas , G. D'Ago , J. H. J. de Bruijne , M. Dennefeld , V. S. Dhillon , M. Dominik , J. Dziedzic , O. Ereceantalya , M. V. Eselevich , H. Esenoglu , L. Eyer , R. Figuera Jaimes , S. J. Fossey , A. I. Galeev , S. A. Grebenev , A. C. Gupta , A. G. Gutaev , N. Hallakoun , A. Hamanowicz , C. Han , B. Handzlik , J. B. Haislip , L. Hanlon , L. K. Hardy , D. L. Harrison , H. J. van Heerden , V. L. Hoette , K. Horne , R. Hudec , M. Hundertmark , N. Ihanec , E. N. Irtuganov , R. Itoh , P. Iwanek , M. D. Jovanovic , R. Janulis , M. Jelínek , E. Jensen , Z. Kaczmarek , D. Katz , I. M. Khamitov , Y. Kilic , J. Klencki , U. Kolb , G. Kopacki , V. V. Kouprianov , K. Kruszyńska , S. Kurowski , G. Latev , C-H. Lee , S. Leonini , G. Leto , F. Lewis , Z. Li , A. Liakos , S. P. Littlefair , J. Lu , C. J. Manser , S. Mao , D. Maoz , A. Martin-Carrillo , J. P. Marais , M. Maskoliūnas , J. R. Maund , P. J. Meintjes , S. S. Melnikov , K. Ment , P. Mikołajczyk , M. Morrell , N. Mowlavi , D. Moździerski , D. Murphy , S. Nazarov , H. Netzel , R. Nesci , C. -C. Ngeow , A. J. Norton , E. O. Ofek , E. Pakstienė , L. Palaversa , A. Pandey , E. Paraskeva , M. Pawlak , M. T. Penny , B. E. Penprase , A. Piascik , J. L. Prieto , J. K. T. Qvam , C. Ranc , A. Rebassa-Mansergas , D. E. Reichart , P. Reig , L. Rhodes , J. -P. Rivet , G. Rixon , D. Roberts , P. Rosi , D. M. Russell , R. Zanmar Sanchez , G. Scarpetta , G. Seabroke , B. J. Shappee , R. Schmidt , Y. Shvartzvald , M. Sitek , J. Skowron , M. Śniegowska , C. Snodgrass , P. S. Soares , B. van Soelen , Z. T. Spetsieri , A. Stankeviciūtė , I. A. Steele , R. A. Street , J. Strobl , E. Strubble , H. Szegedi , L. M. Tinjaca Ramirez , L. Tomasella , Y. Tsapras , D. Vernet , S. Villanueva , O. Vince , J. Wambsganss , I. P. van der Westhuizen , K. Wiersema , D. Wium , R. W. Wilson , A. Yoldas , R. Ya. Zhuchkov , D. G. Zhukov , J. Zdanavicius , S. Zoła , A. Zubareva