LCs of KMT-2022-BLG-0086 with 2L2s & 3L1S models

We found that the event is best explained by the binary-lens binary-source (2L2S) model, but the 2L2S model is only favored over the triple-lens single-source (3L1S) model by {Delta}{chi}^2^~9. Although the event has noticeable anomalies around the peak of the light curve, they are not enough covered to constrain the angular Einstein radius {theta}_E_, thus we only measure the minimum angular Einstein radius {theta}_E,min_.

From the Bayesian analysis, it is found that that the binary lens system is a binary star with masses of (m_1_,m_2_)=(0.46^+0.35^_-0.25_M_{sun}_,0.75^+0.67^_-0.55_M_{sun}_) at a distance of D_L_=5.87^+1.21^_-1.79_kpc, while the triple lens system is a brown dwarf or a massive giant planet in a low-mass binary-star system with masses of (m_1_,m_2_,m_3_)= (0.43^+0.41^_-0.35_M_{sun}_,0.056^+0.055^_-0.047_M_{sun}_, 20.84^+20.20^_-17.04_M_{sun}_), at a distance of D_L_=4.06^+1.39^_-3.28_kpc, indicating a disk lens system.