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KMT-2025-BLG-1616Lb: First Microlensing Bound Planet From DREAMS

  • Authors: Hongjing Yang, 弘靖 杨, Weicheng Zang, 伟呈 臧, Yoon-Hyun Ryu, Takahiro Sumi, Jiyuan Zhang, 纪元 张, Hongyu Li, 弘禹 李, Cheongho Han, Yuchen Tang, Qiyue Qian, Zhixing Li, Yuxin Shang, Xikai Shan, Shude Mao, Guillermo Damke, Alfredo Zenteno, Steve Heathcote, Konstantina Boutsia, Przemek Mróz, Xiurui Zhao, Matthew Penny, Sean Terry, Patrick Tamburo, Timothy Cunningham, Quanzhi Ye, Eric W. Peng, Rachel Street, Katarzyna Kruszyńska, Etienne Bachelet, Yiannis Tsapras, Markus Hundertmark, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Kyu-Ha Hwang, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Dong-Jin Kim, Chung-Uk Lee, Byeong-Gon Park, David P. Bennett, Ian A. Bond, Ryusei Hamada, Yuki Hirao, Asahi Idei, Shuma Makida, Shota Miyazaki, Tutumi Nagai, Togo Nagano, Seiya Nakayama, Mayu Nishio, Kansuke Nunota, Ryo Ogawa, Ryunosuke Oishi, Yui Okumoto, Nicholas J. Rattenbury, Yuki K. Satoh, Daisuke Suzuki, Motohide Tamura, Takuto Tamaoki, Hibiki Yama

Hongjing Yang et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 2.

The χ2 surface in the ﹩(\mathrm{log}s,\mathrm{log}q)﹩ plane obtained from the 2L1S grid search. The upper panel shows the coarse grid, while the lower panel zooms in on the dense grid around the global minimum. Dark red, red, yellow, green, blue, and dark blue denote grid points within Δχ2 < 1n, <2n, <3n, <4n, <5n, and <6n, respectively, where n = 80. Grid points with Δχ2 > 480 are left blank. The labels “Close Central,” “Wide Central,” “Close Resonant,” and “Wide Resonant” in the lower panel mark the four local minima.

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