The spectral profiles of the cesium D \(_{1}\left( 6p^{2}P_{1/2}-6s^{2}S_{1/2}\right) \) and \(\textrm{D}_{2}\left( 6p^{2}P_{3/2}-6s^{2}S_{1/2}\right) \) lines broadened by collision with neon atoms have been determined for temperature range \(323-3000\) K by adopting a full quantum mechanical approach. The photoabsoption and photoemission spectra have been simulated by using the accurate potential energy curves and transition dipole moments calculated at the spin-orbit multi-reference configuration interaction level. The computations have shown especially that the free-free transitions dominate both photoabsorption and photoemission profiles and could point out the appearance of one satellite feature in far blue wing close to the wavelength \(\lambda \approx 827\) nm attributed to the \(X^{2}\Sigma _{1/2}^{+}-B^{2}\Sigma _{1/2}^{+}\) transitions. The obtained results are compared with those already measured.
