Han CBond IAUdalski ALee C-UGould AAlbrow MDChung S-JHwang K-HJung YKRyu Y-HShvartzvald YShin I-GYee JCYang HZang WCha S-MKim DKim D-JKim S-LLee D-JLee YPark B-GPogge RWAbe FBando KBarry RBennett DPBhattacharya AFujii HFukui AHamada RHamada SHamasaki NHirao YIshitani Silva SItow YKirikawa RKoshimoto NMatsubara YMiyazaki SMuraki YNagai TNunota KOlmschenk GRanc CRattenbury NJSatoh YSumi TSuzuki DTomoyoshi MTristram PJVandorou AYama HYamashita KMróz PSzymański MKSkowron JPoleski RSoszyński IPietrukowicz PKozlowski SRybicki KAIwanek PUlaczyk KWrona MGromadzki MMróz MJ2025-01-142025-01-142024-11Han C, Bond IA, Udalski A, Lee CU, Gould A, Albrow MD, Chung SJ, Hwang KH, Jung YK, 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, Abe F, Bando K, Barry R, Bennett DP, Bhattacharya A, Fujii H, Fukui A, Hamada R, Hamada S, Hamasaki N, Hirao Y, Silva SI, Itow Y, Kirikawa R, Koshimoto N, Matsubara Y, Miyazaki S, Muraki Y, Nagai T, Nunota K, Olmschenk G, Ranc C, Rattenbury NJ, Satoh Y, Sumi T, Suzuki D, Tomoyoshi M, Tristram PJ, Vandorou A, Yama H, Yamashita K, Mróz P, Szymański MK, Skowron J, Poleski R, Soszyński I, Pietrukowicz P, Kozlowski S, Rybicki KA, Iwanek P, Ulaczyk K, Wrona M, Gromadzki M, Mróz MJ. (2024). Microlensing brown-dwarf companions in binaries detected during the 2022 and 2023 seasons. Astronomy and Astrophysics. 691. November 2024.0004-6361https://mro.massey.ac.nz/handle/10179/72372Aims. Building on previous works to construct a homogeneous sample of brown dwarfs in binary systems, we investigate microlensing events detected by the Korea Microlensing Telescope Network (KMTNet) survey during the 2022 and 2023 seasons. Methods. Given the difficulty in distinguishing brown-dwarf events from those produced by binary lenses with nearly equal-mass components, we analyze all lensing events detected during the seasons that exhibit anomalies characteristic of binary-lens systems. Results. Using the same criteria consistently applied in previous studies, we identify six additional brown dwarf candidates through the analysis of lensing events KMT-2022-BLG-0412, KMT-2022-BLG-2286, KMT-2023-BLG-0201, KMT-2023-BLG-0601, KMT-2023-BLG-1684, and KMT-2023-BLG-1743. An examination of the mass posteriors shows that the median mass of the lens companions ranges from 0.02 M⊙ to 0.05 M⊙, indicating that these companions fall within the brown-dwarf mass range. The mass of the primary lenses ranges from 0.11 M⊙ to 0.68 M⊙, indicating that they are low-mass stars with substantially lower masses compared to the Sun.(c) The author/shttps://creativecommons.org/licenses/by/4.0/gravitational lensingJournal article10.1051/0004-6361/2024514161432-0746CC BYjournal-articleA237