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    Interstellar Helium Flow in the Solar System

    Date: 22 Sep 2004
    Satellite: Ulysses, ACE, EUVE
    Depicts: Data from multiple satellites on Helium flow
    Copyright: ESA

    Data from several satellites on the flow of interstellar helium in the solar system is presented here. The figure shows a compilation of the observations along with weighted mean values from all available observations.

    Upper panel: direction of the helium flow in ecliptic coordinates.

    Lower panel: flow speed and temperature. 

    It is evident that the direct observation of the neutral atoms by the GAS instrument provides the flow characteristics with the least uncertainty. 


    Last Update: 22 Sep 2004

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    • The Flow of Interstellar Helium in the Solar System

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