Atmospheric stratification resulting from RADYN. Left and middle panels: temporal evolution of temperature and velocity in the RADYN simulation. The simulation was performed with δ = 7, E_c = 20 keV and energy flux of 5 × 10¹⁰ erg s⁻¹ cm⁻². Right panel: temporal evolution of the integrated radiative losses in the chromosphere estimated using the simulated atmosphere. Solid black lines refer to the total integrated radiative losses.