Short-hard GRBs: III. Spectrum of Prompt Emission (lead by Jay Norris)

"What We Know About Short Bursts' Spectra", compared to spectra of long bursts. As introduction, we briefly visit the often-shown duration vs. hardness diagram for GRBs, asking a few questions: How really different are the hardnesses of the two classes? What spectral attribute most accounts for this apparent difference in hardness? How different are the spectra of the two classes in their rest frames? Long bursts often evolve significantly, from hard to soft spectrum, so what might that suggest vis-a-vis initial conditions compared to short bursts? Is there an important instrumental selection effect operating? Why are short burst spectra often fitted with a power law combined with exponential cutoff - is there no higher-energy power-law component? Should we expect to see any short bursts at GLAST/LAT energies? All these questions have at least partially good answers, or good pointers in the relevant papers (a few listed below), or derivable from clear inferences that we can make. Plus, some interesting new leads may be evident in the Swift/BAT sample. In the final say, should we label bursts as short-hard vs. long-soft?