Abstract In our earlier work [2–4], we proposed using the coronal magnetic field as an implicit tracer when studying the properties of differential rotation of the solar corona. At present, this is virtually the only way to study the rotation of the Sun at large heliocentric distances up to the source surface. In the present work, calculations of the coronal magnetic field have been extended over a longer time interval, till December 31, 2015. It is shown that the solar corona rotates differentially at all heliocentric distances up to the source surface. The differential rotation gradient decreases with distance. As we approach the source surface, the corona rotation becomes more rigid, but even at large heliocentric distances it remains slightly differential. We believe that the differential rotation of the solar corona reflects the rotation of deep subphotospheric layers. In this case, the behavior of the coronal rotation characteristics can be used as indicator of differential rotation of the subphotospheric layers. We have compared the changes in the coronal rotation characteristics with distance with helioseismic data and obtained a satisfactory agreement. Cycle variations in the differential rotation of subphotospheric layers have been investigated for the first time.


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    Titel :

    Solar Corona as Indicator of Differential Rotation of Subphotospheric Layers


    Beteiligte:
    Obridko, V. N. (Autor:in) / Badalyan, O. G. (Autor:in)

    Erschienen in:

    Cosmic Research ; 57 , 6 ; 407-412


    Erscheinungsdatum :

    2019




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    50.93 Weltraumforschung / 39.00 Astronomie: Allgemeines / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    770/3520/8000



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    Analysis of a Relation between Subphotospheric Plasma Flows and Photospheric Current Kernels

    Kulinova, A. / Dzifcakova, E. / Kosovichev, A. G. et al. | British Library Conference Proceedings | 2006


    Two modes of rotation in the solar corona

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    Two modes of rotation in the solar corona

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