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

分类： 天文学 >> 天文学 提交时间： 2023-02-19

In-Gu Shin Jennifer C. Yee Andrew Gould Kyu-Ha Hwang Hongjing Yang Ian A. Bond Michael D. Albrow Sun-Ju Chung Cheongho Han Youn Kil Jung Yoon-Hyun Ryu Yossi Shvartzvald Weicheng Zang Sang-Mok Cha Dong-Jin Kim Seung-Lee Kim Chung-Uk Lee Dong-Joo Lee Yongseok Lee Byeong-Gon Park

摘要： We present the analysis of three more planets from the KMTNet 2021 microlensing season. KMT-2021-BLG-0119Lb is a $\sim 6\, M_{\rm Jup}$ planet orbiting an early M-dwarf or a K-dwarf, KMT-2021-BLG-0192Lb is a $\sim 2\, M_{\rm Nep}$ planet orbiting an M-dwarf, and KMT-2021-BLG-0192Lb is a $\sim 1.25\, M_{\rm Nep}$ 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.

同行评议状态:待评议

 点击量 41  下载量 25  评论