Na I and H$\alpha$ absorption features in the atmosphere of MASCARA-2b/KELT-20b

N. Casasayas-Barris, E. Palle, F. Yan +9

We have used the HARPS-North high resolution spectrograph ($\mathcal{R}$=115 000) at TNG to observe one transit of the highly irradiated planet MASCARA-2b/KELT-20b. Using only one…