Acceleration and Particle Field Interactions of Cosmic Rays I: Formalism
| Autor: | Tawfik, A., Saleh, A., Ghoneim, M. T., Hady, A. A. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Physics International 3, 64-73 (2012) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.3844/pisp.2012.64.73 |
| Popis: | The acceleration of ultra high energy cosmic rays is conjectured to occur through various interactions with the electromagnetic fields in different astrophysical objects, like magnetic matter clumps, besides the well-known shock and stochastic Fermi mechanisms. It is apparent that the latter are not depending on the particle's charge, quantitatively. Based on this model, a considerable portion of the dynamics, that derives a charged particle parallel to a magnetic field $\mathbf{B}$ and under the influence of a force $\mathbf{F}$, is assumed to be composed of an acceleration by a non-magnetic force $\mathbf{F}_{\parallel}$ and a gyromotion along $\mathbf{B}$ direction, plus drifts in the direction of $\mathbf{F}_{\perp}$. The model and its formalism are introduced. Various examples for drift motions and accelerating forces are suggested. The formalism is given in a non-relativistic version. Obviously, the translation into the relativistic version is standard. In a forthcoming work, a quantitative estimation of the energy gained by charged cosmic rays in various astrophysical objects will be evaluated. Comment: 9 pages, 2 EPS figures |
| Databáze: | arXiv |
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