Stellar activity and rotation are tightly related in a dynamo process. Our understanding of this mechanism is mainly limited by our capability of inferring the...
PublicaciónA calibration of the Rossby number from asteroseismology
PublicaciónA cool starspot or a second transiting planet in the TrES-1 system?
Aims: We investigate the origin of a flux increase found during a transit of TrES-1, observed with the HST (Hubble Space Telescope). This feature in the HST...
PublicaciónAcoustic oscillations and dynamo action in the G8 sub-giant EK Eridani
We present further evidence of acoustic oscillations in the slowly rotating overactive G8 sub-giant EK Eri. This star was observed with the 1m Hertzsprung SONG...
PublicaciónAnalysis of new high-precision transit light curves of WASP-10 b: starspot occultations, small planetary radius, and high metallicity
Context. The WASP-10 planetary system is intriguing because different values of radius have been reported for its transiting exoplanet. The host star exhibits...
PublicaciónCharacterization of the radial velocity signal induced by rotation in late-type dwarfs
We investigate the activity-induced signals related to rotation and magnetic cycles in late-type stars (FGKM) and analyse the Ca II H&K, the H α and the radial...
PublicaciónCorrecting the effect of stellar spots on ARIEL transmission spectra - II. The limb-darkening effect
This paper is part of an effort to correct the transmission spectra of a transiting planet orbiting an active star. In Paper I (Cracchiolo, Micela & Peres 2020)...
PublicaciónDoppler images of the RS CVn binary HR 1099 (V711 Tau) from the MUSICOS 1998 campaign
We present Doppler Images of the RS CVn binary system HR 1099 (V711 Tau) from spectra taken in two different sites, KPNO and MSO, during the MUSICOS 1998...
PublicaciónDoppler imaging of the double-lined active binary V824 Ara
We introduce an iterative spectral disentangling technique combined with Doppler imaging in order to recover surface temperature maps for both components of...
PublicaciónErratum: Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators