Skewed Maxwellian distribution as a function of the relative velocity between a grain and the gas for different drift velocities and gas temperatures. Solid lines show the case of V_drift = 0 km s^-1, dotted lines the case of V_drift = 35 km s^-1 and dashed lines the case of V_drift = 200 km s^-1. Black lines are for a gas temperature T_gas = 10⁴ K, red lines are for T_gas = 10⁵ K and the blue lines represent the inertial sputtering.