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

Abstract

Evidence of TeV emission from GRB970417a 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 scaler system that recorded the rate of signals from the Milagrito photomultipliers. This analysis shows that if emission from GRB970417a has been observed, it must contain photons with energies above 650 GeV. Some consequences of this observation are discussed.

Submitted to the Astrophysical Journal

References in corpus (3)

• Implications of Lag-Luminosity Relationship for Unified GRB Paradigms
• Luminosity Function of Gamma-Ray Bursts Derived Without Benefit of Redshifts
• Extragalactic Gamma-ray Absorption and the Intrinsic Spectrum of Mkn 501 During the 1997 Flare

Cited by in corpus (22)

• The Physics of Gamma-Ray Bursts
• Gamma-Ray Bursts in the Swift Era
• Gamma-Ray Bursts in the Swift Era
• On the sensitivity of the HAWC observatory to gamma-ray bursts
• High-Energy Cosmic Rays from Gamma-Ray Bursts
• Temporal Evolution of Pair Attenuation Signatures in Gamma-Ray Burst Spectra
• Cosmic Physics: The High Energy Frontier
• High energy photon emission in the early afterglow of GRB's
• High-energy emission from Gamma-Ray Bursts
• Milagro Constraints on Very High Energy Emission from Short Duration Gamma-Ray Bursts
• Search for high-energy muon neutrinos from the "naked-eye" GRB 080319B with the IceCube neutrino telescope
• H.E.S.S. Observations of the Prompt and Afterglow Phases of GRB 060602B
• Constraints on Very High Energy gamma-ray emission from Gamma-Ray Bursts
• IACT observations of gamma-ray bursts: prospects for the Cherenkov Telescope Array
• Gamma Ray Burst Predictions for the Fermi Gamma Ray Space Telescope
• Modeling gamma-ray burst observations by Fermi and MAGIC including attenuation due to diffuse background light
• Observational Constraints on the Angular and Spectral Distributions of Photons in Gamma-Ray Burst Sources
• Search for a simultaneous signal from small transient events in the Pierre Auger Observatory and the Tupi muon telescopes
• On the detection of TeV gamma-rays from GRB with km-cube neutrino telescopes --- I. Muon event rate from single GRBs
• Search for muon neutrinos from Gamma-Ray Bursts with the IceCube neutrino telescope
• Detection of GRB signals with Fluorescence Detectors
• Major Change in Understanding of GRBs at TeV