相关论文: Gaia20fnr: A binary-lens microlensing event with f…

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…

太阳与恒星天体物理 · 物理学 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

A close binary lens revealed by the microlensing event Gaia20bof

During the last 25 years, hundreds of binary stars and planets have been discovered towards the Galactic Bulge by microlensing surveys. Thanks to a new generation of large-sky surveys, it is now possible to regularly detect microlensing…

地球与行星天体物理 · 物理学 2024-05-06 E. Bachelet , P. Rota , V. Bozza , P. Zielinski , Y. Tsapras , M. Hundertmark , J. Wambsganss , L. Wyrzykowski , P. J. Mikolajczyk , R. A. Street , R. Figuera Jaimes , A. Cassan , M. Dominik , D. A. H. Buckley , S. Awiphan , N. Nakhaharutai , S. Zola , K. A. Rybicki , M. Gromadzki , K. Howil , N. Ihanec , M. Jablonska , K. Kruszynska , U. Pylypenko , M. Ratajczak , M. Sitek , M. Rabus

Gaia21blx: Complete resolution of a binary microlensing event in the Galactic disk

Context. Gravitational microlensing is a method that is used to discover planet-hosting systems at distances of several kiloparsec in the Galactic disk and bulge. We present the analysis of a microlensing event reported by the Gaia…

太阳与恒星天体物理 · 物理学 2024-06-19 P. Rota , V. Bozza , M. Hundertmark , E. Bachelet , R. Street , Y. Tsapras , A. Cassan , M. Dominik , R. Figuera Jaimes , K. A. Rybicki , J. Wambsganss , L. Wyrzykowski , P. Zielinski , M. Bonavita , T. C. Hinse , U. G. Jorgensen , E. Khalouei , H. Korhonen , P. Longa-Pena , N. Peixinho , S. Rahvar , S. Sajadian , J. Skottfelt , C. Snodgrass , J. Tregolan-Reed

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…

星系天体物理 · 物理学 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

Lens parameters for Gaia18cbf -- a long gravitational microlensing event in the Galactic plane

Context: The timescale of a microlensing event scales as a square root of a lens mass. Therefore, long-lasting events are important candidates for massive lenses, including black holes. Aims: Here we present the analysis of the Gaia18cbf…

太阳与恒星天体物理 · 物理学 2022-06-15 Katarzyna Kruszyńska , Ł. Wyrzykowski , K. A. Rybicki , M. Maskoliūnas , E. Bachelet , N. Rattenbury , P. Mróz , P. Zieliński , K. Howil , Z. Kaczmarek , S. T. Hodgkin , N. Ihanec , I. Gezer , M. Gromadzki , P. Mikołajczyk , A. Stankevičiūtė , V. Čepas , E. Pakštienė , K. Šiškauskaitė , J. Zdanavičius , V. Bozza , M. Dominik , R. Figuera Jaimes , A. Fukui , M. Hundertmark , N. Narita , R. Street , Y. Tsapras , M. Bronikowski , M. Jabłońska , A. Jabłonowska , O. Ziółkowska

Microlensing planets in the light of the second data release of Gaia

Extrasolar planets found by gravitational microlensing often require assumptions on the source star distance and relative proper motion. Only in a few cases has it been possible to confirm these findings with space-based observations or…

地球与行星天体物理 · 物理学 2018-05-01 K. -S. Nikolaus , M. Hundertmark

The First Planetary Microlensing Event with Two Microlensed Source Stars

We present the analysis of microlensing event MOA-2010-BLG-117, and show that the light curve can only be explained by the gravitational lensing of a binary source star system by a star with a Jupiter mass ratio planet. It was necessary to…

地球与行星天体物理 · 物理学 2018-03-23 D. P. Bennett , A. Udalski , C. Han , I. A. Bond , J. -P. Beaulieu , J. Skowron , B. S. Gaudi , 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 , H. Oyokawa , C. Ranc , N. J. Rattenbury , M. K. Rosenthal , To. Saito , A. Sharan , D. J. Sullivan , T. Sumi , D. Suzuki , P. J. Tristram , A. Yonehara , M. K. Szymanski , R. Poleski , I. Soszynski , K. Ulaczyk , L. Wyrzykowski , D. DePoy , A. Gould , R. W. Pogge , J. C. Yee , M. D. Albrow , E. Bachelet , V. Batista , R. Bowens-Rubin , S. Brillant , J. A. R. Caldwell , A. Cole , C. Coutures , S. Dieters , D. Dominis Prester , J. Donatowicz , P. Fouque , K. Horne , M. Hundertmark , N. Kains , S. R. Kane , J. -B. Marquette , J. Menzies , K. R. Pollard , C. Ranc , K. C. Sahu , J. Wambsganss , A. Williams , M. Zub

Predicted microlensing events from analysis of Gaia Data Release 2

Astrometric microlensing can be used to make precise measurements of the masses of lens stars that are independent of their assumed internal physics. Such direct mass measurements, obtained purely by observing the gravitational effects of…

太阳与恒星天体物理 · 物理学 2018-10-17 D. M. Bramich

Four binary microlenses with directly measured masses

We investigated binary lens events from the 2022-2024 microlensing surveys, aiming to identify events suitable for lens mass measurements. We focused on two key light curve features: distinct caustic spikes with resolved crossings for…

天体物理仪器与方法 · 物理学 2025-08-18 Cheongho Han , Andrzej Udalski , Chung-Uk Lee , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Youn Kil Jung , Kyu-Ha Hwang , Yoon-Hyun Ryu , Yossi Shvartzvald , In-Gu Shin , Jennifer C. Yee , Weicheng Zang , Hongjing Yang , 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 , Michał Jaroszyński , Marcin Kiraga , Fumio Abe , David P. Bennett , Aparna Bhattacharya , Akihiko Fukui , Ryusei Hamada , Stela Ishitani Silva , Yuki Hirao , 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 , Sean K. Terry , Paul J. Tristram , Aikaterini Vandorou , Hibiki Yama

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.…

太阳与恒星天体物理 · 物理学 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

KMT-2016-BLG-2052L: Microlensing Binary Composed of M Dwarfs Revealed from a Very Long Time-scale Event

We present the analysis of a binary microlensing event KMT-2016-BLG-2052, for which the lensing-induced brightening of the source star lasted for 2 seasons. We determine the lens mass from the combined measurements of the microlens parallax…

太阳与恒星天体物理 · 物理学 2018-09-26 Cheongho Han , Youn Kil Jung , Yossi Shvartzvald , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Doeon Kim , Chung-Uk Lee , Woong-Tae Kim , Hyoun-Woo Kim , Yoon-Hyun Ryu , In-Gu Shin , Jennifer C. Yee , Chun-Hwey Kim , Sang-Mok Cha , Seung-Lee Kim , Dong-Jin Kim , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge , Charles Beichman , Geoff Bryden , Sebastiano Calchi Novati , B. Scott Gaudi , Calen B. Henderson , Matthew T. P. , Savannah R. Jacklin

20 years of photometric microlensing events predicted by Gaia DR2: Potential planet-hosting lenses within 100 pc

Context. Gaia DR2 offers unparalleled precision on stars' parallaxes and proper motions. This allows the prediction of microlensing events for which the lens stars (and any planets they possess) are nearby and may be well studied and…

太阳与恒星天体物理 · 物理学 2018-10-03 Alexander J Mustill , Melvyn B Davies , Lennart Lindegren

Prediction of astrometric microlensing events from Gaia DR2 proper motions

Context: Astrometric gravitational microlensing is an excellent tool to determine the mass of stellar objects. Using precise astrometric measurements of the lensed position of a background source in combination with accurate predictions of…

太阳与恒星天体物理 · 物理学 2018-12-19 J. Klüter , U. Bastian , M. Demleitner , J. Wambsganss

Binary astrometric microlensing with Gaia

We investigate whether Gaia can specify the binary fractions of massive stellar populations in the Galactic disk through astrometric microlensing. Furthermore, we study if some information about their mass distributions can be inferred via…

太阳与恒星天体物理 · 物理学 2015-04-14 Sedighe Sajadian

Predictions of Gaia's prize microlensing events are flawed

Precision astrometry from the second Gaia data release has allowed astronomers to predict 5,787 microlensing events, with 528 of these having maximums within the extended Gaia mission (J2014.5 - J2026.5). Future analysis of the Gaia…

太阳与恒星天体物理 · 物理学 2020-07-08 Peter McGill , Andrew Everall , Douglas Boubert , Leigh Smith

KMT-2019-BLG-1715: planetary microlensing event with three lens masses and two source stars

We investigate the gravitational microlensing event KMT-2019-BLG-1715, of which light curve shows two short-term anomalies from a caustic-crossing binary-lensing light curve: one with a large deviation and the other with a small deviation.…

地球与行星天体物理 · 物理学 2021-06-02 Cheongho Han , Andrzej Udalski , Doeone Kim , Youn Kil Jung , Chung-Uk Lee , Ian A. Bond , Michael D. Albrow , Sun-Ju Chung , Andrew Gould , Kyu-Ha Hwang , Hyoun-Woo Kim , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Weicheng Zang , Jennifer C. Yee , 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 , Radek Poleski , Igor Soszyński , Paweł Pietrukowicz , Szymon Kozłowski , Krzysztof Ulaczyk , Krzysztof A. Rybicki , Patryk Iwanek , Marcin Wrona , Mariusz Gromadzki , Fumio Abe , Richard Barry , David P. Bennett , Aparna Bhattacharya , Martin Donachie , Hirosane Fujii , Akihiko Fukui , Yoshitaka Itow , Yuki Hirao , Rintaro Kirikawa , Iona Kondo , Man Cheung Alex Li , Yutaka Matsubara , Yasushi Muraki , Shota Miyazaki , Clément Ranc , Nicholas J. Rattenbury , Yuki Satoh , Hikaru Shoji , Haruno Suematsu , Takahiro Sumi , Daisuke Suzuki , Yuzuru Tanaka , Paul J. Tristram , Takeharu Yamakawa , Tsubasa Yamawaki , Atsunori Yonehara

Prediction of Astrometric-Microlensing Events from Gaia eDR3 Proper Motions

Astrometric microlensing is a unique tool to measure stellar masses. It allows us to determine the mass of the lensing star with an accuracy of a few per cent. In this paper, we update, extend, and refine our predictions of…

太阳与恒星天体物理 · 物理学 2022-03-30 Jonas Klüter , Ulrich Bastian , Markus Demleitner , Joachim Wambsganss

Expectations on the mass determination using astrometric microlensing by Gaia

Context. Astrometric gravitational microlensing can be used to determine the mass of a single star (the lens) with an accuracy of a few percent. To do so, precise measurements of the angular separations between lens and background star with…

天体物理仪器与方法 · 物理学 2020-08-26 J. Klüter , U. Bastian , J. Wambsganss

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…

地球与行星天体物理 · 物理学 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

Predicting Astrometric Microlensing Events from Gaia DR3

Currently astrometric microlensing is the only tool that can directly measure the mass of a single star, it can also help us to detect compact objects like isolated neutron stars and black holes. The number of microlensing events that are…

太阳与恒星天体物理 · 物理学 2023-11-01 Jie Su , Jiancheng Wang , Yigong Zhang , Xiangming Cheng , Lei Yang