Abstract
view Abstract Citations (151) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Mean Ionic Charge of Silicon in 3He-rich Solar Flares Luhn, A. ; Klecker, B. ; Hovestadt, D. ; Moebius, E. Abstract The charge state of Si in solar flares with enhanced He-3 is investigated on the basis of measurements obtained at a sunward distance of about 230 earth radii by the ultralow-energy Z, E, and Q sensor of ISEE 3 during 1978-1979. The data are presented in tables and graphs and characterized. The charge is found to have a mean of about 14 and a 99-percent-confidence-level lower bound of 11.7, as compared to 11.0 + or - 0.3 for normal flare events. Also presented are corrections to the mean Fe charges reported by Klecker et al. (1984). Both mean charge states indicate a source temperature of about 10 million K and appear to be incompatible with the mechanism proposed by Fisk (1978) to explain He-3 enrichment. Publication: The Astrophysical Journal Pub Date: June 1987 DOI: 10.1086/165343 Bibcode: 1987ApJ...317..951L Keywords: Helium Isotopes; Ion Charge; Silicon; Solar Flares; International Sun Earth Explorer 3; Iron; Solar Temperature; Solar Physics; SUN: FLARES full text sources ADS |
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