Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..444..117l&link_type=abstract
5th international conference of numerical modeling of space plasma flows (astronum 2010). Proceedings of a 5th international con
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Current sheets are common structures in the solar wind and are a significant source of solar wind MHD turbulence intermittency. They can arise from non-linear interactions of MHD turbulence or be relic structures in the solar wind that having a solar origin. Observations show that magnetic field directions often change abruptly upon crossing these structures. The presence of these structures can affect the transport of solar energetic particles. To understand the effects of these current sheet a realistic solar wind model that includes them is necessary. In this work, we construct a realistic solar wind model that explicitly includes current sheets. In our model, the solar wind is composed of individual cells with varying local uniform mean magnetic fields. The size of the individual cells are adjusted to agree with in-situ observations at 1 AU. The turbulence in each cell is modeled by either a slab and/or 2D turbulence.
Li Gaojun
Qin Gan
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