AbstractDifferent kinds of coronal holes are sources of different kind of solar winds. A successful solar wind acceleration model should be able to explain all those solar winds. For the modeling it is important to find a universal relation between the solar wind physical parameters, such as velocity, and coronal physical parameters such as magnetic field energy. To clarify the physical parameters which control the solar wind velocity, we have studied the relation between solar wind velocity and properties of its source region such as photospheric/coronal magnetic field and the size of each coronal hole during the solar minimum. The solar wind velocity structures were derived by using interplanetary scintillation tomography obtained at Solar-Terrestrial Environment Laboratory, Japan. Potential magnetic fields were calculated to identify the source region of the solar wind. HeI 1083 nm absorption line maps obtained at Kitt Peak National Solar Observatory were used to identify coronal holes. As a result, we found a relation during solar minimum between the solar wind velocity and the coronal magnetic condition which is applicable to different kind of solar winds from different kind of coronal holes.


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    Titel :

    Relation between solar wind velocity and properties of its source region


    Beteiligte:
    Fujiki, K. (Autor:in) / Hirano, M. (Autor:in) / Kojima, M. (Autor:in) / Tokumaru, M. (Autor:in) / Baba, D. (Autor:in) / Yamashita, M. (Autor:in) / Hakamada, K. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 35 , 12 ; 2185-2188


    Erscheinungsdatum :

    2005-05-17


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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