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astro-ph.IM2026★ 1 cited
A Model Selection Criterion for Multidimensional Gaussian Processes: Application to Radial Velocities
Oscar Barragán
Multidimensional Gaussian Process (multi-GP) regression is widely used to disentangle stellar and planetary signals in radial velocities (RVs) by jointly modelling ancillary activi…
astro-ph.IM2024
REPUBLIC: A variability-preserving systematic-correction algorithm for PLATO's multi-camera light curves
Oscar Barragán, Suzanne Aigrain, James McCormac
Space-based photometry missions produce exquisite light curves that contain a wealth of stellar variability on a wide range of timescales. Light curves also typically contain signi…