Discrete events and solar wind energization

Details Discrete events and solar wind energization Discrete events and solar wind energization

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...343..494y&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 343, Aug. 1, 1989, p. 494-498.

Astronomy and Astrophysics

Astrophysics

6

Magnetic Field Reconnection, Solar Atmosphere, Solar Energy, Solar Magnetic Field, Solar Wind, Atmospheric Heating, Hydrodynamic Equations, Interplanetary Medium, Magnetohydrodynamic Waves, Plasma Turbulence, Solar Corona

Scientific paper

Based on a multiple-magnetic-reconnection picture, an estimation of the energy flux suggests that small-scale EUV exploding events may contribute a significant amount of energy (of order of 100,000 erg/sq cm sec) to solar atmospheric heating and solar-wind acceleration. Most of the dissipated magnetic energy is converted into thermal energy and plasma turbulence. On a related aspect, a numerical study based on the nonlinear one-fluid hydrodynamic equations shows a self-smoothing effect, whereby a multistream structure of the solar wind formed near the sun can be gradually smoothed during its propagation through interplanetary space. This calculation gives support for the possible contribution of discrete energetic events to high-speed solar wind streams.

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