Laboratory relations between the solar wind dynamic pressure and the magnetospheric structures of the Earth and comets

Details Laboratory relations between the solar wind dynamic pressure and the magnetospheric structures of the Earth and comets Laboratory relations between the solar wind dynamic pressure and the magnetospheric structures of the Earth and comets

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ppcn.conf..171m&link_type=abstract

In ESA, Fourth International Toki Conference on Plasma Physics and Controlled Nuclear Fusion p 171-176 (SEE N94-22624 05-75)

Physics

Plasma Physics

Comet Tails, Magnetopause, Solar Wind, Magnetic Field Configurations, Magnetohydrodynamic Flow, Plasma Jets, Radiation Pressure, Solar Flares

Scientific paper

Based on laboratory simulation of the Earth's and cometary magnetospheres, it is shown quantitatively how these configurations are controlled by the solar wind dynamic pressure without any effects of parameters. Laboratory relations between the size of contact surface of both magnetospheres and the dynamic pressure of the solar wind are analyzed and compared with the values calculated by a pressure balance equations. The quantitative result shows the dynamic pressure dependence on the size of the magnetopause. This result is applied to explain how the field lines change during the passage of the discontinuity of the dynamic pressure of the solar wind. The shrinking of the Earth's magnetosphere increases the current density in the tail and a reconnection in the tail occurs. It is suggested that this mechanism can exist even in the cometary tails resulting from the disconnection event. An evident chronological series of the solar terrestrial events of the cometary disconnection and the Earth's magnetospheric substorm due to single solar flare event is shown.

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