KMT-2024-BLG-0816/OGLE-2024-BLG-0519 -- A Microlensing Event with Candidate Free-Floating Planet Lens and Blended Light

arXiv (Cornell University) 2026 Preprint Open access

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Authors: R. Poleski, Y-H Ryu, Andrzej Udalski, W. Zang, M. D. Albrow, S. -J. Chung, A. Gould, C. Han, K-H Hwang, Y. K. Jung, I. -G. Shin, Yossi Shvartzvald
+18 more J. C. Yee, H. J. Yang, D. J. Kim, C. U. Lee, B. -G. Park, M. Szymański, I. Soszyński, Krzysztof Ulaczyk, P. Pietrukowicz, J. Skowron, D. M. Skowron, P. Mróz, K. Rybicki, Patryk Iwanek, M. Wrona, M. Gromadzki, M. Mróz, M. Ratajczak
DOI: 10.48550/arxiv.2601.00325
Cited by: 0

Abstract

We present the discovery of a free-floating planet microlensing event KMT-2024-BLG-0816. The event shows finite-source effect, significant blending light, and no microlensing signal from a putative planet host. Among the free-floating planet events with finite source effects, this is the only event with unresolved blending light. We discuss how follow-up observations can be used to determine whether the blending light originates from a putative planet host.

Fields of Study & Subjects

Stellar planetary and galactic studies Astronomy and Astrophysical Research Gamma-ray bursts and supernovae

Publication details

Journal / source
arXiv (Cornell University)
Publication date
1 January 2026
Document type
Preprint