The Synergy between the LAT and GBM in GLAST’s Study of Gamma-Ray Bursts

Using semi‐analytic calculations I characterize the gamma‐ray bursts to which GLAST’s LAT and GBM detectors will be sensitive. The thresholds of both instruments are at approximately the same νfν ∝ E2N(E) values, i.e., the thresholds can be connected by an E−2 spectrum. Therefore simultaneous detections by both instruments will be biased towards spectral components flatter than E−2.