Abstract For the March/April 1991 time period, the alpha/proton abundance ratio, the proton kinetic temperature and speed distributions, and the relative abundance of O+7 to O+6 is determined over each 13-minute duty cycle of the Solar Wind Ion Composition Spectrometer (SWICS) experiment on Ulysses. The ratio O +7 O +6 (as a relative measure of ionization temperature) is shown to be useful in identifying possible coronal mass ejection (CME) events. We report measurements of silicon/oxygen abundance ratios and silicon and oxygen charge state distributions in the solar wind during a CME event and compare these compositions to a “normal” solar wind time period.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Solar wind composition measurements by the Ulysses SWICS experiment during transient solar wind flows


    Contributors:
    Galvin, A.B. (author) / Gloeckler, G. (author) / Ipavich, F.M. (author) / Shafer, C.M. (author) / Geiss, J. (author) / Ogilvie, K. (author)

    Published in:

    Publication date :

    1993-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Sulfur abundances in the solar wind measured by SWICS on Ulysses

    Shafer, C. M. / Gloeckler, G. / Galvin, A. B. et al. | NTRS | 1993


    Sulfur abundances in the solar wind measured by SWICS on Ulysses

    Shafer, C.M. / Gloeckler, G. / Galvin, A.B. et al. | Elsevier | 1993