{"paper":{"title":"KMT-2022-BLG-0440Lb: A New $q < 10^{-4}$ Microlensing Planet with the Central-Resonant Caustic Degeneracy Broken","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.EP","authors_text":"Aikaterini Vandorou, Akihiko Fukui, Andrew Gould, Aparna Bhattacharya, Arisa Okamura, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Cl\\'ement Ranc, Daisuke Suzuki, Dan Maoz, David P. Bennett, Dong-Jin Kim, Dong-Joo Lee, Fumio Abe, Greg Olmschenk, Hibiki Yama, Hirosane Fujii, Hongjing Yang, Hyoun-Woo Kim, Ian A. Bond, In-Gu Shin, Iona Kondo, Jennifer C. Yee, Jiyuan Zhang, Kansuke Yamashita, Kyu-Ha Hwang, Matthew T. Penny, Michael D. Albrow, Mio Tomoyoshi, Naoki Koshimoto, Nicholas J. Rattenbury, Paul J. Tristram, Qiyue Qian, Richard Barry, Richard W. Pogge, Rintaro Kirikawa, Ryusei Hamada, Sang-Mok Cha, Seung-Lee Kim, Sho Matsumoto, Shota Miyazaki, Shude Mao, Stela Ishitani Silva, Subo Dong, Sun-Ju Chung, Taiga Toda, Takahiro Sumi, Weicheng Zang, Wei Zhu, Yasushi Muraki, Yongseok Lee, Yoon-Hyun Ryu, Yoshitaka Itow, Yossi Shvartzvald, Youn Kil Jung, Yuki Hirao, Yuki Satoh, Yutaka Matsubara, Zhuokai Liu","submitted_at":"2023-01-17T10:13:14Z","abstract_excerpt":"We present the observations and analysis of a high-magnification microlensing planetary event, KMT-2022-BLG-0440, for which the weak and short-lived planetary signal was covered by both the KMTNet survey and follow-up observations. The binary-lens models with a central caustic provide the best fits, with a planet/host mass ratio, $q = 0.75$--$1.00 \\times 10^{-4}$ at $1\\sigma$. The binary-lens models with a resonant caustic and a brown-dwarf mass ratio are both excluded by $\\Delta\\chi^2 > 70$. The binary-source model can fit the anomaly well but is rejected by the ``color argument'' on the seco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.06779","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2301.06779/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}