4 papers
Why M-dwarf flares have limited impact on the atmospheric evaporation of sub-Neptunes and Earth-sized planets
Andrea Caldiroli, Francesco Haardt, Elena Gallo +4
M-type stars are prime targets for exoplanet searches within their habitable zones (HZs). These stars also exhibit significant magnetic flaring activity, particularly during their…
High-resolution transmission spectroscopy of the hot-Saturn HD 149026b
Federico Biassoni, Francesco Borsa, Francesco Haardt +1
Advances in modern technologies enable the characterisation of exoplanetary atmospheres, most efficiently exploiting the transmission spectroscopy technique. We performed visible (…
The time evolution of the ultraviolet habitable zone
R. Spinelli, F. Borsa, G. Ghirlanda +3
For stars hosting Circumstellar Habitable Zone (CHZ) exoplanets, we investigate the time-evolution of their ultraviolet habitable zone (UHZ), the annular region around a star where…
Evaporation of Close-in Sub-Neptunes by Cooling White Dwarfs
Elena Gallo, Andrea Caldiroli, Riccardo Spinelli +5
Motivated by the recent surge in interest concerning white dwarf (WD) planets, this work presents the first numerical exploration of WD-driven atmospheric escape, whereby the high-…