Two Duskside Relativistic Electron Precipitation Events Seen During the 2008/2009 Balloon Array for Radiation-belt Relativistic Electron Losses (BARREL) Piggyback Flight

Details Two Duskside Relativistic Electron Precipitation Events Seen During the 2008/2009 Balloon Array for Radiation-belt Relativistic Electron Losses (BARREL) Piggyback Flight Two Duskside Relativistic Electron Precipitation Events Seen During the 2008/2009 Balloon Array for Radiation-belt Relativistic Electron Losses (BARREL) Piggyback Flight

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm23a1597l&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM23A-1597

Physics

[2716] Magnetospheric Physics / Energetic Particles: Precipitating, [2774] Magnetospheric Physics / Radiation Belts

Scientific paper

The Balloon Array for Radiation-belt Relativistic Electron Losses (BARREL) is a balloon-based mission studying the loss of relativistic electrons from the outer radiation belts. Understanding and quantifying electron losses is a vital component of understanding radiation belt dynamics. Radiation belt electrons lost to the Earth's atmosphere, called relativistic electron precipitation (REP), can be observed by the bremsstrahlung X-rays produced as the electrons are scattered in the atmosphere. In December 2008 a test balloon payload with an X-ray detector was launched and collected data for 54 days. Analysis of the data from this flight shows two intense and spectrally hard events occurring during the dusk sector of MLT. Interpretation requires modeling both the interaction of electrons in the atmosphere to make gammas and the interaction of the gammas in the atmosphere and in the instrument. A spectral analysis of these two events will be presented and electron spectra will be derived for these events.

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