Han CUdalski ABond IALee C-UGould AAlbrow MDChung S-JHwang K-HJung YKKim H-WRyu Y-HShvartzvald YShin I-GYee JCYang HZang WCha S-MKim DKim D-JKim S-LLee D-JLee YPark B-GPogge RWMróz PSzymański MKSkowron JPoleski RSoszyński IPietrukowicz PKozłowski SRybicki KAIwanek PUlaczyk KWrona MGromadzki MMróz MJAbe FBarry RBennett DPBhattacharya AFujii HFukui AHamada RHirao YSilva SIItow YKirikawa RKoshimoto NMatsubara YMiyazaki SMuraki YOlmschenk GRanc CRattenbury NJSatoh YSumi TSuzuki DTomoyoshi MTristram PJVandorou AYama HYamashita K2024-09-092024-09-092024-06-14Han C, Udalski A, Bond IA, Lee CU, Gould A, Albrow MD, Chung SJ, Hwang KH, Jung YK, Kim HW, Ryu YH, Shvartzvald Y, Shin IG, Yee JC, Yang H, Zang W, Cha SM, Kim D, Kim DJ, Kim SL, Lee DJ, Lee Y, Park BG, Pogge RW, Mróz P, Szymański MK, Skowron J, Poleski R, Soszyński I, Pietrukowicz P, Kozłowski S, Rybicki KA, Iwanek P, Ulaczyk K, Wrona M, Gromadzki M, Mróz MJ, Abe F, Barry R, Bennett DP, Bhattacharya A, Fujii H, Fukui A, Hamada R, Hirao Y, Silva SI, Itow Y, Kirikawa R, Koshimoto N, Matsubara Y, Miyazaki S, Muraki Y, Olmschenk G, Ranc C, Rattenbury NJ, Satoh Y, Sumi T, Suzuki D, Tomoyoshi M, Tristram PJ, Vandorou A, Yama H, Yamashita K. (2024). OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects. Astronomy and Astrophysics. 686.0004-6361https://mro.massey.ac.nz/handle/10179/71438Aims. We undertake a project to reexamine microlensing data gathered from high-cadence surveys. The aim of the project is to reinvestigate lensing events whose light curves exhibit intricate anomaly features that are associated with caustics, but lack prior proposed models that would explain these features. Methods. Through detailed reanalyses considering higher-order effects, we determined that it is vital to account for the orbital motions of lenses to accurately explain the anomaly features observed in the light curves of the lensing events OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136. Results. We estimated the masses and distances to the lenses by conducting Bayesian analyses using the lensing parameters of the newly found lensing solutions. These analyses showed that the lenses of the events OGLE-2018-BLG-0971 and MOA-2023-BLG-065 are binaries composed of M dwarfs, while the lens of OGLE-2023-BLG-0136 likely is a binary composed of an early K-dwarf primary and a late M-dwarf companion. For all lensing events, the probability that the lens resides in the bulge is considerably higher than that it is located in the disk.(c) 2024 The Author/sCC BY 4.0https://creativecommons.org/licenses/by/4.0/gravitational lensing: microJournal article10.1051/0004-6361/2023490631432-0746journal-articleA234