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arXiv · 2204.04354

Systematic KMTNet Planetary Anomaly Search. V. Complete Sample of 2018 Prime-Field

Andrew Gould·Cheongho Han·Weicheng Zang·Hongjing Yang·Kyu-Ha Hwang·Andrzej Udalski·Ian A. Bond·Michael D. Albrow·Sun-Ju Chung·Youn Kil Jung·Yoon-Hyun Ryu·In-Gu Shin·Yossi Shvartzvald·Jennifer C. Yee·Sang-Mok Cha·Dong-Jin Kim·Hyoun-Woo Kim·Seung-Lee Kim·Chung-Uk Lee·Dong-Joo Lee·Yongseok Lee·Byeong-Gon Park·Richard W. Pogge·Przemek Mróz·Michał K. Szymański·Jan Skowron·Radek Poleski·Igor Soszyński·Paweł Pietrukowicz·Szymon Kozłowski·Krzysztof Ulaczyk·Krzysztof A. Rybicki·Patryk Iwanek·Marcin Wrona·Fumio Abe·Richard Barry·David P. Bennett·Aparna Bhattacharya·Hirosame Fujii·Akihiko Fukui·Yuki Hirao·Stela Ishitani Silva·Rintaro Kirikawa·Iona Kondo·Naoki Koshimoto·Yutaka Matsubara·Sho Matsumoto·Shota Miyazaki·Yasushi Muraki·Arisa Okamura·Greg Olmschenk·Clément Ranc·Nicholas J. Rattenbury·Yuki Satoh·Takahiro Sumi·Daisuke Suzuki·Taiga Toda·Paul J. Tristram·Aikaterini Vandorou·Hibiki Yama·Charles Beichman·Geoffry Bryden·Sebastiano Calchi Novati·B. Scott Gaudi·Calen B. Henderson·MatthewT. Penny·Savannah Jacklin·Keivan G. Stassun
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Abstract

We complete the analysis of all 2018 prime-field microlensing planets identified by the KMTNet AnomalyFinder. Among the 10 previously unpublished events with clear planetary solutions, 8 are either unambiguously planetary or are very likely to be planetary in nature: OGLE-2018-BLG-1126, KMT-2018-BLG-2004, OGLE-2018-BLG-1647, OGLE-2018-BLG-1367, OGLE-2018-BLG-1544, OGLE-2018-BLG-0932, OGLE-2018-BLG-1212, and KMT-2018-BLG-2718. Combined with the 4 previously published new AnomalyFinder events and 12 previously published (or in preparation) planets that were discovered by eye, thismakes a total of 24 2018 prime-field planets discovered or recovered by AnomalyFinder. Together with a paper in preparation on 2018 sub-prime planets, this work lays the basis for the first statistical analysis of the planet mass-ratio function based on planets identified in KMTNet data. By systematically applying the heuristic analysis of Hwang et al. (2022) to each event, we identify the small modification in their formalism that is needed to unify the so-called close/wide and inner/outer degeneracies, as conjectured by

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Andrew Gould, Cheongho Han, Weicheng Zang, Hongjing Yang, Kyu-Ha Hwang, Andrzej Udalski, Ian A. Bond, Michael D. Albrow, Sun-Ju Chung, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, Przemek Mróz, Michał K. Szymański, Jan Skowron, Radek Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Hirosame Fujii, Akihiko Fukui, Yuki Hirao, Stela Ishitani Silva, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Arisa Okamura, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, Charles Beichman, Geoffry Bryden, Sebastiano Calchi Novati, B. Scott Gaudi, Calen B. Henderson, MatthewT. Penny, Savannah Jacklin, Keivan G. Stassun. 2022-04-09. Systematic KMTNet Planetary Anomaly Search. V. Complete Sample of 2018 Prime-Field. https://doi.org/10.1051/0004-6361%2F202243744

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