X-shooter spectrum of TYC 7335-550-1 in Hα region, normalized to the local continuum (black solid line) along with the inactive photospheric template (red dotted line). The latter is produced by ROTFIT with the BT-Settl synthetic spectrum at the T_eff and log g of this target that is degraded to the resolution of X-shooter, rotationally broadened, and wavelength-shifted according to the target RV. The difference target-template is displayed at the bottom of the box and emphasizes the Hα emission that fills in the line core (green hatched area), which has been integrated to obtain the Hα line flux.