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7 - Solar-wind interaction with magnetized obstacles

C. T. Russell ,
J. G. Luhmann  and
R. J. Strangeway
C. T. Russell
Affiliation:
University of California, Los Angeles
J. G. Luhmann
Affiliation:
University of California, Berkeley
R. J. Strangeway
Affiliation:
University of California, Los Angeles
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Summary

As correctly foreseen by Chapman and Ferraro (1930) (see Chapter 1), a planetary magnetic field provides an effective obstacle to the solar-wind plasma. The solar-wind dynamic pressure, or momentum flux, compresses the outer reaches of the magnetic field, confining it to a cavity. This magnetic cavity has a long magnetotail consisting of two antiparallel bundles of magnetic flux that originate in the polar regions and stretch in the antisolar direction, as sketched for the Earth in Figures 1.16 and 1.17 in Chapter 1.

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Space Physics
An Introduction
 , pp. 222 - 247
Publisher: Cambridge University Press
Print publication year: 2016

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