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arxiv 2204.04354 v1 pith:OEW3VFYH submitted 2022-04-09 astro-ph.EP astro-ph.GA

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 (Leading authors) , Michael D. Albrow
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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 (The KMTNet Collaboration) Przemek Mr\'oz Micha{\l} K. Szyma\'nski Jan Skowron Radek Poleski Igor Soszy\'nski Pawe{\l} Pietrukowicz Szymon Koz{\l}owski Krzysztof Ulaczyk Krzysztof A. Rybicki Patryk Iwanek Marcin Wrona (The OGLE Collaboration) 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 Cl\'ement Ranc Nicholas J. Rattenbury Yuki Satoh Takahiro Sumi Daisuke Suzuki Taiga Toda Paul J. Tristram Aikaterini Vandorou Hibiki Yama (The MOA Collaboration) Charles Beichman Geoffry Bryden Sebastiano Calchi Novati B. Scott Gaudi Calen B. Henderson MatthewT. Penny Savannah Jacklin Keivan G. Stassun (The UKIRT Microlensing Team)
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keywords planetsplanetaryanalysisanomalyfinderkmtnetpreviouslyprime-fieldcomplete
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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 Among the 10 previously unpublished events with clear planetary solutions, 8 are either unambiguously planetary or are very likely to be planetary in nature: OGLE-2018-BLG-1126,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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