The authors parameterize the photometric distortion waves in the short-period RS CVn system BH Vir by a dark, circular spot model for the active regions on the...
Magnetic and Rotational Evolution of ρ CrB from Asteroseismology with TESS
During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent...
Magnetic Fields in M-dwarf Members of the Pleiades Open Cluster Using APOGEE Spectra
Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe I lines in the H band. A...
Mapping magnetic activity indicators across the M dwarf domain
Stellar activity poses one of the main obstacles for the detection and characterisation of exoplanets around cool stars, as it can induce radial velocity (RV)...
Mapping stellar activity indicators across the M dwarf domain
Despite stellar magnetic activity being present in most cool stars, its effects on spectroscopic observations are still not well understood. Several activity...
Mapping the Sun's upper photosphere with artificial neural networks
In this talk I'll present results from a recent paper in which we have developed a new analysis technique for solar spectra based on artificial neural networks...
Modeling the Chromosphere and Transition Region of Planet-hosting Star GJ 436
Ahead of upcoming space missions intending to conduct observations of low-mass stars in the ultraviolet (UV) spectral region it becomes imperative to...
Optical and infrared studies of Galactic open clusters
In the first (optical) part, we present our recent results on mass and luminosity function of Galactic open clusters, a new statistical study based on the ASCC...
PLANETARY PIECES: PUTING THE CLUES TOGETHER USING WHITE DWARFS
Planetary systems have been found systematically orbiting main sequence stars and red giants. But the detection of planets per se during the white dwarf phase...