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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 10 (1971), S. 136-149 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Sommario Si mostra come il flusso cinetico originato negli inviluppi convettivi di una stella dipenda criticamente dalle assunzioni fatte nel trattamento della convezione superadiabatica. In particolare, sulla base della teoria della lunghezza di rimescolamento, a seconda che si assumal=H P o l=H ϱ i flussi cinetici passano dall'essere un fenomeno marginale a contributi determinanti. E' discussa una serie di possibili implicazioni riguardanti la microturbolenza atmosferica in stelle di sequenza principale, le stelleA p eA m, diversi tipi di variabili e la perdita di massa in fase di gigante.
    Notes: Summary The mechanical flux originating in the convective envelope of stars is shown to depend critically by the treatment of convection. In particular, in the framework of the mixing-length theory, in passing from a mixing lengthl=H P to a mixing lengthl=H ϱ the presence of mechanical fluxes shifts from being a marginal phenomenon to a dominant one. Possible implications concerning atmospheric microturbulence in Main Sequence stars, as so asA p andA m stars, several types of variables and mass loss are briefly discussed.
    Type of Medium: Electronic Resource
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