Systematic KMTNet planetary anomaly search: V. Complete sample of 2018 prime-field
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Date
2022-08-08
Open Access Location
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciences
Rights
CC BY 4.0
(c) 2022 The Author/s
(c) 2022 The Author/s
Abstract
We complete the analysis of all 2018 prime-field microlensing planets identified by the Korea Microlensing Telescope Network (KMTNet) Anomaly Finder. Among the ten previously unpublished events with clear planetary solutions, eight are either unambiguously planetary or are very likely to be planetary in nature: OGLE-2018-BLG-1126,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 four previously published new Anomaly Finder events and 12 previously published (or in preparation) planets that were discovered by eye, this makes a total of 24 2018 prime-field planets discovered or recovered by Anomaly Finder. Together with a paper in preparation on 2018 subprime 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 to each event, we identified the small modification in their formalism that is needed to unify the so-called close-wide and inner-outer degeneracies.
Description
Keywords
gravitational lensing, micro / planets and satellites, detection
Citation
Gould A, Han C, Zang W, Yang H, Hwang KH, Udalski A, Bond IA, Albrow MD, Chung SJ, Jung YK, Ryu YH, Shin IG, Shvartzvald Y, Yee JC, Cha SM, Kim DJ, Kim HW, Kim SL, Lee CU, Lee DJ, Lee Y, Park BG, Pogge RW, Mróz P, Szymanski MK, Skowron J, Poleski R, Soszynski I, Pietrukowicz P, Kozlowski S, Ulaczyk K, Rybicki KA, Iwanek P, Wrona M, Abe F, Barry R, Bennett DP, Bhattacharya A, Fujii H, Fukui A, Hirao Y, Silva SI, Kirikawa R, Kondo I, Koshimoto N, Matsubara Y, Matsumoto S, Miyazaki S, Muraki Y, Okamura A, Olmschenk G, Ranc C, Rattenbury NJ, Satoh Y, Sumi T, Suzuki D, Toda T, Tristram PJ, Vandorou A, Yama H, Beichman C, Bryden G, Novati SC, Gaudi BS, Henderson CB, Penny MT, Jacklin S, Stassun KG. (2022). Systematic KMTNet planetary anomaly search: V. Complete sample of 2018 prime-field. Astronomy and Astrophysics. 664.