Fermi GBM Observations of Terrestrial Gamma-ray Flashes

Details Fermi GBM Observations of Terrestrial Gamma-ray Flashes Fermi GBM Observations of Terrestrial Gamma-ray Flashes

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1366...47b&link_type=abstract

PARTIALLY IONIZED PLASMAS THROUGHOUT THE COSMOS-PROCEEDINGS OF THE 2010 HUNTSVILLE WORKSHOP. AIP Conference Proceedings, Volume

Astronomy and Astrophysics

Astronomy

Gamma-Ray Sources (Astronomical), Acceleration, Geomagnetism, Photons, Gamma-Ray Sources, Gamma-Ray Bursts, Particle Acceleration, Origins And Models Of The Magnetic Field, Dynamo Theories, Photons

Scientific paper

Terrestrial Gamma-ray Flashes are short pulses of energetic radiation associated with thunderstorms and lightning. While the Gamma-ray Burst Monitor (GBM) on Fermi was designed to observe gamma-ray bursts, its large BGO detectors are excellent for observing TGFs. Using GBM, TGF pulses are seen to either be symmetrical or have faster rise time than fall times. Some TGFs are resolved into double, partially overlapping pulses. Using ground-based radio observations of lightning from the World Wide Lightning Location Network (WWLLN), TGFs and their associated lightning are found to be simultaneous to ~40 μ s. The lightning locations are typically within 300 km of the sub-spacecraft point.

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