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  • Solitons  (1)
  • Spontaneous magnetic fields  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 575-581 
    ISSN: 0392-6737
    Keywords: Waves, oscillations, and instabilities in plasma ; Solitons ; BGK modes ; Relativistic plasma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si deduce in un plasma magnetico l’equazione di Kortewg-de Vries per le onde acustiche di ioni in presenza di una velocità di filtramento degli ioni debolmente relativistica. Si trova che gli effetti relativistici sono importanti nella propagazione d’onda solitaria sia per i modi veloci sia per quelli lenti. Si riconfermano i risultati precedenti.
    Abstract: Резюме В намагниченной плазме выводится уравнение Кортевега де Фриза для ионных акустических волн в присутствии слабо релятивистского ионного потока. Получается, что релятивистские эффекты являются важными при распространении уединенных волн для быстрых и медленных мод. В работе подтверждаются ранее полученные результаты.
    Notes: Summary The Korteweg-de Vries equation for ion acoustic waves in the presence of weakly relativistic ion streaming velocity is derived in a magnetic plasma. It is found that relativistic effects are important in the solitary wave propagation for both fast and slow modes. Earlier results are reconfirmed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of fusion energy 19 (2000), S. 159-161 
    ISSN: 1572-9591
    Keywords: Spontaneous magnetic fields
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The time evolution of magnetic field from a steady state of an ideal unmagnetized plasma does not seem to be possible. The electric field produced to maintain the density gradient turns out to be curl-free, which is a result different from earlier investigations quoted in the literature. Some kind of perturbation or an external effect is necessary to produce magnetic fields. The electron inertia can play a vital role in electromagnetic instabilities. Therefore, the magneto-hydrodynamic (MHD) models used to study magnetic field generation should be modified especially to look into the system's evolution from zero time when the field is zero in the ideal unmagnetized plasma.
    Type of Medium: Electronic Resource
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