Physics – Plasma Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh21a1587a&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH21A-1587
Physics
Plasma Physics
1650 Solar Variability (7537), 2164 Solar Wind Plasma, 7800 Space Plasma Physics, 7900 Space Weather, 7974 Solar Effects
Scientific paper
It is well known from Parker model that the solar wind becomes supersonic beyond a critical radius. The 2-D structure was given by several simulation studies. In the present study, it is extended to the 3-D model when a spherically symmetric 1-D solution by Parker is used as an initial state. By using this model, we can investigate physically complex phenomena more detail. We use a dipole magnetic field as the initial conditions of the solar wind. The 3D structure of the solar wind has been simulated by using a global MHD model to demonstrate the Parker spiral configuration. At that time, magnetic field lines enter the Earth"fs revolution orbit with an angle of 45 degrees. In addition, we use a split dipole magnetic field in place of the dipole magnetic field as the initial conditions to study configuration and thickness of the current sheet of heliosphere.
Amano Masami
Ogino Takeshi
Umeda Takashi
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