Based on the OMNI2 database for the period from 1976 to 2019, the behavior of the relative abundance of helium ions Nα/Np is investigated inside interplanetary coronal mass ejections (ICMEs). It is shown that the previously discovered anticorrelation between Nα/Np and the parameter β inside ICMEs is due to the dependence on magnetic pressure (or the magnitude of the interplanetary magnetic field), while the dependence of Nα/Np on the magnitude of the thermal pressure weakly falling in a magnetic cloud and increases in EJECTA. The data obtained are consistent with the previously suggested hypothesis that an electric current enriched with helium ions flows inside an ICME [1–3].


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    Title :

    Helium Abundance Variations in Interplanetary Coronal Mass Ejections


    Additional title:

    Cosmic Res


    Contributors:

    Published in:

    Cosmic Research ; 60 , 2 ; 67-72


    Publication date :

    2022-04-01


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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