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  • Horan, D; Atkins, R. W; Badran, H. M; Blaylock, G; Bradbury, S. M; Buckley, J. H; Byrum, K. L; Celik, O; Chow, Y. C. K; Cogan, P; Cui, W; Daniel, M. K; Perez, I. de la Calle; Dowdall, C; Falcone, A. D; Fegan, D. J; Fegan, S. J; Finley, J. P; Fortin, P; Fortson, L. F; Gillanders, G. H; Grube, J; Gutierrez, K. J; Hall, J; Hanna, D; Holder, J; Hughes, S. B; Humensky, T. B; Kenny, G. E; Kertzman, M; Kieda, D. B; Kildea, J; Krawczynski, H; Krennrich, F; Lang, M. J; LeBohec, S; Maier, G; Moriarty, P; Nagai, T; Ong, R. A; Perkins, J. S; Petry, D; Quinn, J; Quinn, M; Ragan, K; Reynolds, P. T; Rose, H. J; Schroedter, M; Sembroski, G. H; Steele, D; Swordy, S. P; Toner, J. A; Valcarcel, L; Vassiliev, V. V; Wagner, R. G; Wakely, S. P; Weekes, T. C; White, R. J; Williams, D. A

    arXiv (Cornell University), 01/2007
    Journal Article

    Astrophys.J.655:396-405,2007 Gamma-ray burst (GRB) observations at very high energies (VHE, E > 100 GeV) can impose tight constraints on some GRB emission models. Many GRB afterglow models predict a VHE component similar to that seen in blazars and plerions, in which the GRB spectral energy distribution has a double-peaked shape extending into the VHE regime. VHE emission coincident with delayed X-ray flare emission has also been predicted. GRB follow-up observations have had high priority in the observing program at the Whipple 10m Gamma-ray Telescope and GRBs will continue to be high priority targets as the next generation observatory, VERITAS, comes on-line. Upper limits on the VHE emission, at late times (>~4 hours), from seven GRBs observed with the Whipple Telescope are reported here.