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Space-Borne Observations of Intense Gamma-Ray Flashes (TGFs) Above ThunderstormsIntense millisecond flashes of MeV photons have been observed with space-borne detectors. These terrestrial gamma-ray flashes (TGFs) were discovered with the Burst and Transient Source Experiment (BATSE) aboard the Compton Gamma- Ray Observatory (CGRO) in the early 1990s. They are now being observed with several other instruments, including the Gamma-ray Burst Monitor (GBM) detectors on the Fermi Gamma-ray Space Telescope. Although Fermi-GBM was designed and optimized for the observation of cosmic gamma-ray bursts (GRBs), it has unprecedented capabilities for these TGF observations. On several occasions, intense beams of high-energy electrons and positrons have been observed at the geomagnetic conjugate points of TGFs.
Document ID
20110009922
Acquisition Source
Marshall Space Flight Center
Document Type
Abstract
Authors
Fishman, Gerald J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 25, 2013
Publication Date
February 9, 2011
Subject Category
Geophysics
Report/Patent Number
M11-0253
Report Number: M11-0253
Meeting Information
Meeting: Physics Colloquium
Location: Houston, TX
Country: United States
Start Date: February 9, 2011
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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