Two Low Mass-Ratio Microlensing Planets and Two Types of Central-Resonant Degeneracy

Yuchen Tang, Weicheng Zang, Yoon-Hyun Ryu +39

We present observations and analysis of two low planet/host mass-ratio ($q$) microlensing planets discovered in high-magnification events. KMT-2025-BLG-0811Lb has $q \sim 4.5 \time…