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A Catalog of Terrestrial Gamma-Ray Flashes Observed with the Fermi- Gamma-Ray Burst Monitor: The First Sixteen Months of OperationThe Gamma-ray Burst Monitor (GBM) on the Fermi Gamma-ray Space Telescope Observatory (Fermi) has been detecting on the average about one terrestrial gamma-ray flash every four weeks. This catalog presents the basic characteristics of observed TGFs from the beginning of the Fermi-GBM operation in 2008 July until 2009 October. The thick bismuth germanate (BGO) scintillation detectors of the GBM system have observed photon energies from TGFs at energies above 30 MeV. It is found that the TGF pulses are typically shorter than previously reported, and in several cases less than 0.2ms. Extremely high counting rates are encountered ~200kcps or higher per detector during portions of some TGFs. These high rates require considerable corrections (with inherent assumptions) to the observed data in order to derive the true counting rates.
Document ID
20100003332
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Fishman, Gerald J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Briggs, M. S.
(Alabama Univ. Huntsville, AL, United States)
Connaughton, V.
(Alabama Univ. Huntsville, AL, United States)
Bhat, P. N.
(Alabama Univ. Huntsville, AL, United States)
Date Acquired
August 25, 2013
Publication Date
December 14, 2009
Subject Category
Geophysics
Report/Patent Number
M10-0121
Meeting Information
Meeting: 2009 American Geophysical Union (AGU) 2009 Fall Meeting
Location: San Francisco, CA
Country: United States
Start Date: December 14, 2009
End Date: December 18, 2009
Distribution Limits
Public
Copyright
Other

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