BATSE TIME-RESOLVED OBSERVATIONS OF GRBS - THE BURST TOPOGRAPHIC MAP

It is a well-known observation that many GRBs have spectra with curvat ure in the less than 1 MeV regime, but flatten out to approximately a -2 power law at higher energies. The large collecting area of BATSE al lows spectral studies with unprecedented time resolution. We are condu cting a systematic study of time-resolved spectroscopy of GRBs observe d by BATSE. Several aspects of this survey are discussed: correlations among fit parameters and between fit parameters and intensity; screen ing for spectral features using sigma-residual contour maps; and an in troduction to the GRB 'topographic' map and its possible qualitative d iagnostic abilities.