Virial ratio as a function of the luminosity-to-mass ratio for all the sources for which a measurement of the line FWHM in a high density tracer is available. The solid points denote the sources with Lyman excess. The continuous line marks the equilibrium condition M_gas/M_vir = 1 if only gravitation and turbulent motions are considered, while the dashed line corresponds to virial equilibrium when equipartition between kinetic and magnetic energy is assumed (see URQ13).