Photometric magnetic activity and active-region lifetimes of solar-like stars
Santos, Angela R. G.;
García, Rafael A.;
Cunha, Margarida S.;
Avelino, Pedro P.;
Breton, Sylvain N.
Rotational modulation due to dark spots co-rotating with the stellar surface allows us to constrain rotation and magnetic properties of solar-like stars. The long-term observations collected by Kepler (and those that will be collected by PLATO) are preferred for a better characterization of magnetic activity. In this work, we investigate the temporal variability of the photometric magnetic activity proxy Sph, as well as the characteristic timescale of active-regions in solar-like stars.
Part of the results, particularly on the ACF for artificial date, are published and can be found here: https://ui.adsabs.harvard.edu/abs/2021MNRAS.508..267S/abstract
The rotation and average S_ph catalog can be found here:
The machine learning algorithm for rotation, ROOSTER, is described here: