The high-energy gamma-ray fluence and energy spectrum of GRB 970417a from observations with Milagrito

R. Atkins, W. Benbow, D. Berley, M. L. Chen, D. G. Coyne, B. L. Dingus, D. E. Dorfan, R. W. Ellsworth, D. Evans, A. Falcone, L. Fleysher, R. Fleysher, G. Gisler, M. M. Gonzalez, J. A. Goodman, T. J. Haines, C. M. Hoffman, S. Hugenberger, L. A. Kelley, S. KleinI. Leonor, J. F. McCullough, J. E. McEnery, R. S. Miller, A. I. Mincer, M. F. Morales, P. Nemethy, J. M. Ryan, F. W. Samuelson, B. Shen, A. Shoup, C. Sinnis, A. J. Smith, G. W. Sullivan, T. Tumer, K. Wang, M. O. Wascko, S. Westerhoff, D. A. Williams, T. Yang, G. B. Yodh

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Evidence of TeV emission from GRB 970417a has been previously reported using data from the Milagrito detector. Constraints on the TeV fluence and the energy spectrum are now derived using additional data from a sealer system that recorded the rate of signals from the Milagrito photomultipliers. This analysis shows that if emission from GRB 970417a has been observed, it must contain photons with energies above 650 GeV. Some consequences of this observation are discussed.

    Original languageEnglish (US)
    Pages (from-to)824-832
    Number of pages9
    JournalAstrophysical Journal
    Volume583
    Issue number2 I
    DOIs
    StatePublished - Feb 1 2003

    Keywords

    • Gamma rays: bursts
    • Gamma rays: observations

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

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