Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets
Abstract
We complete the publication of all microlensing planets (and ``possible planets'') identified by the uniform approach of the KMT AnomalyFinder system in the 21 KMT subprime fields during the 2019 observing season, namely KMT-2019-BLG-0298, KMT-2019-BLG-1216, KMT-2019-BLG-2783, OGLE-2019-BLG-0249, and OGLE-2019-BLG-0679 (planets), as well as OGLE-2019-BLG-0344, and KMT-2019-BLG-0304 (possible planets). The five planets have mean log mass-ratio measurements of , median mass estimates of , and median distance estimates of , respectively. The main scientific interest of these planets is that they complete the AnomalyFinder sample for 2019, which has a total of 25 planets that are likely to enter the statistical sample. We find statistical consistency with the previously published 33 planets from the 2018 AnomalyFinder analysis according to an ensemble of five tests. Of the 58 planets from 2018-2019, 23 were newly discovered by AnomalyFinder. Within statistical precision, half of all the planets have caustic crossings while half do not (as predicted by Zhu et al. 2014), an equal number of detected planets result from major-image and minor-image light-curve perturbations, and an equal number come from KMT prime fields versus subprime fields.
Keywords
Cite
@article{arxiv.2302.13544,
title = {Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets},
author = {Youn Kil Jung and Weicheng Zang and Hanyue Wang and Cheongho Han and Andrew Gould and Andrzej Udalski and Michael D. Albrow and Sun-Ju Chung and Kyu-Ha Hwang and Yoon-Hyun Ryu and In-Gu Shin and Yossi Shvartzvald and Hongjing Yang and Jennifer C. Yee and Sang-Mok Cha and Dong-Jin Kim and Seung-Lee Kim and Chung-Uk Lee and Dong-Joo Lee and Yongseok Lee and Byeong-Gon Park and Richard W. Pogge and Przemek Mróz and Michał K. Szymański and Jan Skowron and Radek Poleski and Igor Soszyński and Paweł Pietrukowicz and Szymon Kozłowski and Krzysztof Ulaczyk and Krzysztof A. Rybicki and Patryk Iwanek and Marcin Wrona and Grant Christie and Jonathan Green and Steve Hennerley and Andrew Marmont and Shude Mao and Dan Maoz and Jennie McCormick and Tim Natusch and Matthew T. Penny and Ian Porritt and Wei Zhu},
journal= {arXiv preprint arXiv:2302.13544},
year = {2023}
}
Comments
17 tables, 20 figures, submitted to AAS journals