Aims: We carried out high-resolution spectroscopy and BV(I)C photometric monitoring of the two fastest late-type rotators in the nearby β Pictoris moving group...
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PublicaciónStarspots on the fastest rotators in the β Pictoris moving group
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PublicaciónStellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometry
Context. The study of young Sun-like stars is fundamental to understanding the magnetic activity and rotational evolution of the Sun. Space-borne photometry by...
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PublicaciónSurface rotation and magnetic activity for 55,000+ Kepler solar-type stars
Dark magnetic spots co-rotating with the stellar surface lead to quasi-periodic brightness variations, which enclose relevant information on stellar rotation...
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PublicaciónSurface Rotation and Photometric Activity for Kepler Targets. I. M and K Main-sequence Stars
Brightness variations due to dark spots on the stellar surface encode information about stellar surface rotation and magnetic activity. In this work, we analyze...
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PublicaciónSurface Rotation and Photometric Activity for Kepler Targets. II. G and F Main-sequence Stars and Cool Subgiant Stars
Dark magnetic spots crossing the stellar disk lead to quasiperiodic brightness variations, which allow us to constrain stellar surface rotation and photometric...
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PublicaciónTemporal variation of the photometric magnetic activity for the Sun and Kepler solar-like stars
Context. The photometric time series of solar-like stars can exhibit rotational modulation, that is, brightness variations due to active regions co-rotating...
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PublicaciónThe CARMENES search for exoplanets around M dwarfs. Benchmarking the impact of activity in high-precision radial velocity measurements
Context. Current exoplanet surveys using the radial velocity (RV) technique are targeting M dwarfs because any habitable zone terrestrial-mass planets will...
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PublicaciónThe CARMENES search for exoplanets around M dwarfs. Convective shift and starspot constraints from chromatic radial velocities
Context. Variability caused by stellar activity represents a challenge to the discovery and characterization of terrestrial exoplanets and complicates the...
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PublicaciónThe CoRoT-7 planetary system: two orbiting super-Earths
We report on an intensive observational campaign carried out with HARPS at the 3.6 m telescope at La Silla on the star CoRoT-7. Additional simultaneous...