High-altitude observations of the polar wind.

Details High-altitude observations of the polar wind. High-altitude observations of the polar wind.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997sci...277..349m&link_type=abstract

Science, Vol. 277, No. 5324, p. 349 - 351

Computer Science

21

Earth Magnetosphere: Plasma

Scientific paper

Plasma outflows, escaping from Earth through the high-altitude polar caps into the tail of the magnetosphere, have been observed with a xenon plasma source instrument to reduce the floating potential of the POLAR spacecraft. The largest component of H+ flow, along the local magnetic field, is faster than predicted by theory. The flows contain more O+ than predicted by theories of thermal polar wind but also have elevated ion temperatures. These plasma outflows contribute to the plasmas energized in the elongated nightside tail of the magnetosphere, creating auroras, substorms, and storms. They also constitute an appreciable loss of terrestrial water dissociation products into space.

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