Low energy ions in co-rotating interaction regions at 1 AU: Evidence for statistical ion acceleration |
| |
| Authors: | IG Richardson |
| |
| Institution: | The Blackett Laboratory, Imperial College of Science and Technology, London SW7 2BZ, U.K. |
| |
| Abstract: | The possibility of the statistical acceleration of solar wind ions to energies above 10 keV in the vicinity of co-rotating high speed solar wind streams by scattering from hydromagnetic waves is considered. We find that this process may occur only in the compressed fast stream plasma within the interaction region between the stream interface and the trailing edge, and may account for the energetic ion enhancements observed in this region by Richardson and Zwickl (Planet. Space Sci. 32, 1179, 1984). When statistical acceleration occurs in the outer heliosphere, the accelerated ions may provide a source population for acceleration at the co-rotating reverse shock. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
