HR: 16:25h
AN: SH54B-02 INVITED    [Abstracts]
TI: An Overview of Solar Energetic Particle Ionic Charge States in Flare-Related Events
AU: * Popecki, M
EM: mark.popecki@unh.edu
AF: University of New Hampshire, Morse Hall 39 College Rd, Durham, NH 03824, United States
AU: Moebius, E
EM: eberhard.moebius@unh.edu
AF: University of New Hampshire, Morse Hall 39 College Rd, Durham, NH 03824, United States
AU: Klecker, B
EM: berndt.klecker@mpe.mpg.de
AF: Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, Garching, 85748, Germany
AU: Guo, Z
EM: Zhangbo.guo@unh.edu
AF: University of New Hampshire, Morse Hall 39 College Rd, Durham, NH 03824, United States
AU: Kistler, L
EM: lynn.kistler@unh.edu
AF: University of New Hampshire, Morse Hall 39 College Rd, Durham, NH 03824, United States
AB: The ionic charge state of solar energetic particles may be determined by both the source temperature and collisional effects during acceleration. Early observations by Luhn et al., 1987, revealed a tendency for ions in impulsive events to have a higher charge state than those in gradual events. More recent observations from the ACE/SEPICA instrument show that ions with energy dependent charge states occur in a variety of cases, including impulsive, flare-related events. The energy dependence in flare-related events may be established by the source temperature, collisional effects and propagational effects. An overview of ionic charge state observations for impulsive events will be shown, emphasizing energy-dependent aspects.
DE: 2114 Energetic particles (7514)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting