June
2026
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2026AJ....171..352L
Authors
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Li, Zhixing
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Li, Hongyu
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Zang, Weicheng
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Ryu, Yoon-Hyun
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Udalski, Andrzej
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Sumi, Takahiro
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Yang, Hongjing
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Tang, Yuchen
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Zhang, Jiyuan
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Mao, Shude
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Albrow, Michael D.
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Chung, Sun-Ju
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Gould, Andrew
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Han, Cheongho
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Ha Hwang, Kyu-
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Jung, Youn Kil
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Shin, In-Gu
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Shvartzvald, Yossi
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Yee, Jennifer C.
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Cha, Sang-Mok
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Kim, Dong-Jin
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Kim, Seung-Lee
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Lee, Chung-Uk
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Lee, Dong-Joo
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Lee, Yongseok
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Park, Byeong-Gon
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Pogge, Richard W.
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KMTNet Collaboration
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Mróz, Przemek
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Szymański, Michał K.
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Skowron, Jan
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Poleski, Radoslaw
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Soszyński, Igor
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Pietrukowicz, Paweł
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Kozłowski, Szymon
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Rybicki, Krzysztof A.
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Iwanek, Patryk
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Ulaczyk, Krzysztof
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Wrona, Marcin
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Gromadzki, Mariusz
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Mróz, Mateusz J.
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OGLE Collaboration
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Abe, Fumio
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Bando, Ken
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Bennett, David P.
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Bhattacharya, Aparna
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Bond, Ian A.
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Fukui, Akihiko
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Hamada, Ryusei
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Hamada, Shunya
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Hamasak, Naoto
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Hirao, Yuki
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Ishitani Silva, Stela
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Koshimoto, Naoki
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Matsubara, Yutaka
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Miyazaki, Shota
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Muraki, Yasushi
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Nagai, Tutumi
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Nunota, Kansuke
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Olmschenk, Greg
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Ranc, Clément
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Rattenbury, Nicholas J.
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Satoh, Yuki
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Suzuki, Daisuke
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Terry, Sean
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Tristram, Paul J.
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Vandorou, Aikaterini
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Yama, Hibiki
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MOA Collaboration
Abstract
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To expand the homogeneous microlensing planetary sample of the Korea Microlensing Telescope Network (KMTNet), we investigate six planetary candidates identified by the AnomalyFinder search in the 2023 prime-field data, namely KMT-2023-BLG-1592, OGLE-2023-BLG-0766, KMT-2023-BLG-0332, KMT-2023-BLG-0486, KMT-2023-BLG-0792, and OGLE-2023-BLG-1043. Light-curve modeling indicates that the first two events have planetary mass ratios of logq∼−3.0 and −2.6, while the third exhibits a brown dwarf mass ratio of logq∼−1.4 . The remaining three events show the well-known degeneracy between the binary-lens single-source (2L1S) and single-lens binary-source (1L2S) interpretations. A Bayesian analysis yields companion masses of about 0.6 and 1.2 Jupiter masses for the two planetary systems, likely orbiting beyond the snow lines of M- or K-dwarf hosts. A review of the KMTNet planetary sample shows that candidates discovered by AnomalyFinder are significantly more likely to exhibit the 2L1S/1L2S degeneracy, consistent with the tendency of AnomalyFinder to detect subtler planetary signals.
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