Physics
Scientific paper
Jun 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..374...86l&link_type=abstract
High energy solar physics. AIP Conference Proceedings, Volume 374, pp. 86-95 (1996).
Physics
1
Particle Emission, Solar Wind, Mass Spectrometers
Scientific paper
The mean charge states of abundant heavy ions with ~15-70 MeV nucleon-1 in the two large solar energetic particle events of 1992 October 30 and November 2 have been determined using measurements of the invariant latitude of the cosmic ray geomagnetic cutoffs as a function of time, particle energy, and element from the Mass Spectrometer Telescope on the polar-orbiting SAMPEX satellite. The deduced charge state values are in good agreement with the mean values measured directly in previous solar energetic particle events at much lower energies of ~1 MeV nucleon-1, with inferred equilibrium source temperatures of typically 2×106 K. This result provides additional evidence that solar energetic particles in gradual-type events consist of accelerated coronal material.
Cummings Jay R.
Leske Richard A.
Mewaldt Richard A.
Stone Edward C.
von Rosenvinge Tycho T.
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