Publications (5)
Auto-correlation functions of astrophysical processes, and their relation to Gaussian processes; Application to radial velocities of different starspot configurations
Manuel Perger, Guillem Anglada-Escudé, Ignasi Ribas +3
Accounting for the effects of stellar magnetic phenomena is indispensable to fully exploit radial velocities (RVs). Correlated time variations are often mitigated by Gaussian proce…
Mitigating stellar radial velocity jitter using orthogonal activity indices and a time-aware neural network
Jordi Blanco-Pozo, Manuel Perger, Guillem Anglada-Escudé +7
Despite recent advances in the precision of high-resolution spectrographs, the detection of Earth-like exoplanets is still limited by the effects of stellar activity, which introdu…
The K2-ESPRINT Project II: Spectroscopic follow-up of three exoplanet systems from Campaign 1 of K2
Vincent Van Eylen, Grzegorz Nowak, Simon Albrecht +20
We report on Doppler observations of three transiting planet candidates that were detected during Campaign 1 of the K2 mission. The Doppler observations were conducted with FIES, H…
Ariel: Enabling planetary science across light-years
Giovanna Tinetti, Paul Eccleston, Carole Haswell +313
Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. Durin…
Modelling the photosphere of active stars for planet detection and characterization
Enrique Herrero, Ignasi Ribas, Carme Jordi +3
Stellar activity patterns are responsible for jitter effects that are observed at different timescales and amplitudes. These effects are currently in the focus of many exoplanet se…