Katja Poppenhaeger

Magnetic star-planet interactions are thought to be able to trigger flares on the host stars, with the exoplanets acting as perturbers on magnetic structures in the stellar atmosphere. With a big flare study of star-planet systems, we found some really exiting hints that flares may be clustered in planetary orbital phase (instead of being purely stochastic, or modulated with the stellar rotation period). Exciting times ahead for further study! “Planetary perturbers: flaring star-planet interactions in Kepler and TESS” Authors: Ilin,…

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My group is contributing the the second-light instrument suite for the Extremely Large Telescope: we are developing and building the optical-ultraviolet (UBV) part of the high-resolution spectrograph ANDES. And of course, we are also highly interested in the scientific avenues that will open up with this instrument. The two recent White Papers on exoplanetary and stellar science with ANDES lay out many of the exciting ideas that we can explore: Ground-breaking Exoplanet Science with the ANDES spectrograph at the ELT…

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