150 citations · 206 across the 4 of their papers we have counts for
9 papers
Surface rotation and photometric activity for Kepler targets. II. G and F main-sequence stars, and cool subgiant stars
A. R. G. Santos, S. N. Breton, S. Mathur +1
Dark magnetic spots crossing the stellar disc lead to quasi-periodic brightness variations, which allow us to constrain stellar surface rotation and photometric activity. The curre…
On the relation between active-region lifetimes and the autocorrelation function of light curves
A. R. G. Santos, S. Mathur, R. A. García +2
Rotational modulation of stellar light curves due to dark spots encloses information on spot properties and, thus, on magnetic activity. In particular, the decay of the autocorrela…
A calibration of the Rossby number from asteroseismology
E. Corsaro, A. Bonanno, S. Mathur +4
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 properties of stella…
Precise mass and radius of a transiting super-Earth planet orbiting the M dwarf TOI-1235: a planet in the radius gap?
P. Bluhm, R. Luque, N. Espinoza +78
We report the confirmation of a transiting planet around the bright, inactive M0.5 V star TOI-1235 (TYC 4384-1735-1, V = 11.5 mag), whose transit signal was detected in the photome…
Surface rotation and photometric activity for Kepler targets I. M and K main-sequence stars
A. R. G. Santos, R. A. García, S. Mathur +5
Brightness variations due to dark spots on the stellar surface encode information about stellar surface rotation and magnetic activity. In this work, we analyze the Kepler long-cad…
Signatures of magnetic activity: On the relation between stellar properties and p-mode frequency variations
A. R. G. Santos, T. L. Campante, W. J. Chaplin +12
In the Sun, the properties of acoustic modes are sensitive to changes in the magnetic activity. In particular, mode frequencies are observed to increase with increasing activity le…