  The depolarized light scattering spectra of the glass forming liquid
ortho-terphenyl have been calculated in the low frequency region using
molecular dynamics simulation. Realistic system's configurations are produced
by using a recent flexible molecular model and combined with two limiting
polarizability schemes, both of them using the dipole-induced-dipole
contributions at first and second order. The calculated Raman spectral shape
are in good agreement with the experimental results in a large temperature
range. The analysis of the different contributions to the Raman spectra
emphasizes that the orientational and the collision-induced (translational)
terms lie on the same time-scale and are of comparable intensity. Moreover, the
cross terms are always found to be an important contribution to the scattering
intensity.
