SPECTRA OF UNSTEADY WIND MODELS OF GAMMA-RAY BURSTS

We calculate the spectra expected from internal shocks in unsteady rel ativistic wind models of gamma-ray bursts, suitable for events of arbi trary duration and light curve. The spectral energy distribution of th e burst is calculated over photon energies spanning from eV to TeV, fo r a range of event durations and variability timescales. The relative strength of the emission at different wavelengths can provide valuable information on the particle acceleration, radiation mechanisms, and t he possible types of models.