| Автор(ы): | Liseykina T.V., Dudnikova G.I., Vshivkov V.A., Malkov M.A. |
| Заглавие: | Ion-acoustic shocks with reflected ions: Modelling and particle-in-cell simulations |
| Библ. ссылка: | Liseykina T.V., Dudnikova G.I., Vshivkov V.A., Malkov M.A. Ion-acoustic shocks with reflected ions: Modelling and particle-in-cell simulations // Journal of Plasma Physics. - 2015. - Vol.81. - Iss. 5. - Art.49581050. - ISSN 0022-3778. - EISSN 1469-7807. |
| Внешние системы: | DOI: 10.1017/S002237781500077X; SCOPUS: 2-s2.0-84945208759; WoS: 000367573800026; РИНЦ: 24963893; |
| Доп. информация: | eng: Non-relativistic collisionless shock waves are widespread in space and astrophysical plasmas and are known as efficient particle accelerators. However, our understanding of collisionless shocks, including their structure and the mechanisms whereby they accelerate particles, remains incomplete. We present here the results of numerical modelling of an ion-acoustic collisionless shock based on the one-dimensional kinetic approximation for both electrons and ions with a real mass ratio. Special emphasis is paid to the shock-reflected ions as the main driver of shock dissipation. The reflection efficiency, the velocity distribution of reflected particles and the shock electrostatic structure are studied in terms of the shock parameters. Applications to particle acceleration in geophysical and astrophysical shocks are discussed. © 2015 Cambridge University Press.
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| Ключевые слова: | ACCELERATION; Shock parameters; Shock dissipation; Reflection efficiency; Particle-in-cell simulations; Particle acceleration; Ion-acoustic shocks; Collisionless shocks; Astrophysical plasma; Shock waves; Plasma simulation; Particle accelerators; Collisionless plasmas; PROTON; Astrophysics; PLASMAS; |
| Год издания: | 2015 |
| Страницы или номер статьи: | 49581050 |
