May 14 – 16, 2024
INAF - Catania Astrophysical Observatory
Europe/Rome timezone

An integrated approach to detecting and characterising exoplanets in the presence of stellar variability with PLATO

May 14, 2024, 2:30 PM
30m
DFA - UNICT

DFA - UNICT

Speaker

Suzanne Aigrain (University of Oxford)

Description

PLATO’s top-level science goal is to discover and characterise a sample of small (terrestrial and sub-Netpune size) transiting planets orbiting in the habitable zone of bright stars, and to measure their radii, masses and ages with accuracies of 3, 10% and 10%, respectively. To achieve this goal requires an exquisite understanding of stellar variability signals, from magnetic cycles to spots, faculae, and (super-)granulation: at the level of precision of the PLATO light curves and its.ground based follow up programme, every star is a variable stars. The most promising solutions to the problem involve data-driven models flexible enough to bridge the gaps in our understanding, but robust enough to avoid over fitting. In this invited talk I will review some exciting recent progress in the mitigation of stellar variability in the detection and characterization of transiting exoplanets, illustrating them with current and archival datasets. I will then outline the current status of our plans to address stellar variability within the PLATO consortium and pipelines,

Primary author

Suzanne Aigrain (University of Oxford)

Presentation materials

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