Mass Production of 2021 KMTNet Microlensing Planets III: Analysis of Three Giant Planets

Abstract

We present the analysis of three more planets from the KMTNet 2021 microlensing season. KMT-2021-BLG-0119Lb is a $\sim 6M_{\mathrm{Jup}}$ planet orbiting an early M-dwarf or a K-dwarf, KMT-2021-BLG-0192Lb is a $\sim 2M_{\mathrm{Nep}}$ planet orbiting an M-dwarf, and KMT-2021-BLG-0192Lb is a $\sim 1.25M_{\mathrm{Nep}}$ planet orbiting a very--low-mass M dwarf or a brown dwarf. These by-eye planet detections provide an important comparison sample to the sample selected with the AnomalyFinder algorithm, and in particular, KMT-2021-BLG-2294, is a case of a planet detected by-eye but not by-algorithm. KMT-2021-BLG-2294Lb is part of a population of microlensing planets around very-low-mass host stars that spans the full range of planet masses, in contrast to the planet population at $\lesssim 0.1$ au, which shows a strong preference for small planets.

arXiv comment17 pages, 12 figures, 7 tables. Accept for publication in The Astronomical Journal

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