SIMBAD references

Using the gamma-ray bursts (GRBs) simultaneously detected by Swift/Burst Alert Telescope (BAT) and Fermi/Gamma-ray Burst Monitor (GBM), we performed a joint spectral and temporal analysis of the prompt emission data and confirmed the rough correlation between the BAT-band photon index Γ^BAT and the peak spectral energy E_peak. With the redshift-known subsample, we derived the isotropic gamma-ray energy E_γ, iso_ and also confirmed the E_γ,iso- E_peak,restrelation, with a larger scatter than the Amati sample but consistent with GBM team analyses. We also compare the T₉₀ values derived in the GBM band with those derived in the BAT band and find that for long GRBs the BAT T₉₀is usually longer than the GBM T₉₀, while for short GRBs the trend reverses. This is consistent with the soft/hard nature of long/short GRBs and suggests the importance of an energy-dependent temporal analysis of GRBs.