Systematic KMTNet Planetary Anomaly Search. X. Complete Sample of 2017 Prime-Field Planets

• DOI: 10.48550/arxiv.2307.13359
• Publication Date: 2023-01-01
• Authors: Yoon-Hyun Ryu; A. Udalski; Jennifer C. Yee; Weicheng Zang; Yossi Shvartzvald; Cheongho Han; Andrew Gould; Michael D. Albrow; Sun‐Ju Chung; Kyu‐Ha Hwang; Youn Kil Jung; In-Gu Shin; Hongjing Yang; Sang-Mok Cha; Dong-Jin Kim; Seung‐Lee Kim; Chung‐Uk Lee; Dong-Joo Lee; Yongseok Lee; Byeong-Gon Park; Richard W. Pogge; Hanyue Wang; P. Mróz; M. K. Szymański; J. Skowron; R. Poleski; I. Soszyński; P. Pietrukowicz; S. Kozłowski; K. Ulaczyk; K. Rybicki; Patryk Iwanek; Marcin Wrona; Charles Beichman; G. Bryden; S. Carey; Calen B. Henderson; S. Calchi Novati; Wei Zhu; Savannah Jacklin; Matthew T. Penny
• Keywords: Anomaly (physics); Sample (material)

We complete the analysis of planetary candidates found by KMT AnomalyFinder for 2017 prime fields that cover $\sim 13\,{\rm deg}^2$. report 3 unambiguous planets: OGLE-2017-BLG-0640, OGLE-2017-BLG-1275, and OGLE-2017-BLG-1237. The first two these were not previously identified, while last was published due to technical complications induced a nearby variable. further fourth anomalous event, recognized OGLE-2017-BLG-1777, is very likely be planetary, although its light curve requires unusually complex modeling because lens source both have orbiting companions. One planets, OGLE-2017-BLG-1275 discovery has {\it Spitzer} microlens parallax measurement, $π_E \sim 0.045\pm0.015$, implying this system almost certainly lies in Galactic bulge. In order listed, four events planet-host mass ratios $q$, normalized projected separations $s$, $(\log q,s)$ = $(-2.31,0.61)$, $(-2.06,0.63/1.09)$, $(-2.10,1.04)$, $(-2.86,0.72)$. Combined with events, contain 11 planets well-measured $q$ one candidate, which are discoveries. addition 12, there three other large uncertainties $q$.