The Effect of Microstreams on Alfvénic Fluctuations in the Solar Wind

Details The Effect of Microstreams on Alfvénic Fluctuations in the Solar Wind The Effect of Microstreams on Alfvénic Fluctuations in the Solar Wind

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..679..405g&link_type=abstract

SOLAR WIND TEN: Proceedings of the Tenth International Solar Wind Conference. AIP Conference Proceedings, Volume 679, pp. 405-4

Computer Science

3

Particle Emission, Solar Wind, Solar Wind Plasma, Sources Of Solar Wind

Scientific paper

Even in nominally uniform solar wind flows, such as over the solar poles near solar minimum, the wind velocity exhibits fluctuations of order 40 km/s. We have shown previously that such variations will shear planar parallel propagating magnetic fluctuations leading to the generation of transverse wave vectors. Here we extend our previous two-dimensional magnetohydrodynamic (MHD) simulations to three dimensions and describe how, starting from an initial spectrum of circularly polarized Alfvén waves with radial wave vectors, such ``microstreams'' might produce fluctuations that could be described as ``quasi-two-dimensional''. Our goal is to elucidate the origin of the ``two-component'' nature of the correlation function of magnetic fluctuations.

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