Milestones on our road to understanding the heliosphere between 1950 and 1988 are recalled. Among these are early studies of solar energetic particles suggesting a heliospheric boundary at 5 AU, the discovery of the solar wind and the sectored nature of the interplanetary magnetic field. Recent results, particularly from the Ulysses spacecraft, confirm the arrival of neutrals from interstellar space, the pick-up of singly charged ions by the solar wind and the acceleration of these ions to become anomalous cosmic rays. Two distinct solar wind regimes have been discovered. At low heliolatitudes a highly variable solar wind blows at an average speed around 450 km/s, while at high latitudes a relatively smooth 750 km/s flow is observed. No indicators of a dipole-like magnetic field have been seen by Ulysses in solar polar latitudes. The cosmic radiation increase with latitude is much smaller than predicted. The status of and plans for the Voyager 1 and 2, Pioneer 10 and 11, and Ulysses spacecraft are outlined.


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    Titel :

    Expanding our knowledge of the heliosphere


    Beteiligte:
    Page, D. E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1995



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Expanding Our Knowledge of the Heliosphere

    Page, D.E. | Online Contents | 1995


    Expanding Our Knowledge of the Heliosphere

    Page, D. E. / COSPAR / Scientific Committee on Solar Terrestrial Physics | British Library Conference Proceedings | 1995


    Evolution of our knowledge of the heliosphere

    Simpson, J.A. | Elsevier | 1989



    Radio waves in the heliosphere

    Bougeret, J.-L. | Elsevier | 1993