Abstract Observations of the Thomson scattering brightness by electrons in the inner heliosphere provide a means of probing the heliospheric electron distribution. An extensive data base of Thomson scattering observations, stretching over many years, is available from the zodiacal light photometers on board the two Helios spacecraft. A survey of these data is in progress, presenting these scattering intensities in the form of synoptic maps for successive Carrington rotations. The Thomson scattering maps reflect conditions at typically several tenths of an astronomical unit from the Sun. We discuss some representative examples from the survey in comparison with other solar/heliospheric data, such as in situ observations from the Helios plasma experiment and synoptic maps constructed from magnetic field, Hα and K-coronameter data. The comparison will provide some information about the extension of solar surface features into the inner heliosphere.


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    Title :

    Synoptic maps constructed from brightness observations of Thomson scattering by heliospheric electrons


    Contributors:
    Hick, P. (author) / Jackson, B. (author) / Schwenn, R. (author)

    Published in:

    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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