MINIS Balloon and RHESSI Observations of a Solar Energetic Particle Event

Details MINIS Balloon and RHESSI Observations of a Solar Energetic Particle Event MINIS Balloon and RHESSI Observations of a Solar Energetic Particle Event

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh23a0333m&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SH23A-0333

Physics

2114 Energetic Particles (7514), 2479 Solar Radiation And Cosmic Ray Effects

Scientific paper

An X3.8 class solar flare on 17Jan05 was immediately followed by large increases in energetic proton and electron fluxes within Earth's magnetosphere. Nuclear reactions from the impact of solar energetic particles on atmospheric constituents result in the emission of characteristic gamma rays, which are informative about the incoming particle spectrum. The first MINIS balloon, launched from SANAE in Antarctica (L=4), carried an x-ray spectrometer (energy range 0.05--10.0~MeV), and reached ceiling (35~km) about 5~hours after the flare ended, when GOES energetic particle fluxes were peaking. During this event, the MINIS balloon payload at high latitude, and the RHESSI high resolution spectrometer at lower latitude obtained spectra of atmospheric gamma emissions. We present and compare these higher and lower latitude observations.

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