Planetary-mass exosatellite detected around the substellar companion of a star - Nature

Data availabilityAll reduced data necessary to replicate this work can be found at https://github.com/kevinmhoy/Nature_Hoy-2026. The raw data can be accessed from the ESO archive with IDs 0112.C-2053(A), 0114.C-2039(A) and 116.2AP9. Source data are provided with this paper.Code availabilityThis work is largely produced with publicly available codebases, which can be sourced from their respective citations. All specific utilizations of those codes, and those few original codes used, can be found on GitHub (https://github.com/kevinmhoy/Nature_Hoy-2026).ReferencesSchneider, J., Dedieu, C., Le Sidaner, P., Savalle, R. & Zolotukhin, I. The extrasolar planets encyclopaedia: a database for exoplanets and their host stars. Astron. Astrophys. 532, A79 (2011).Article

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