Solar wind and magnetosheath observations at earth during August 1972

Details Solar wind and magnetosheath observations at earth during August 1972 Solar wind and magnetosheath observations at earth during August 1972

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ssrv...19..687v&link_type=abstract

Space Science Reviews, vol. 19, Oct.-Nov. 1976, p. 687-702.

Computer Science

10

Interplanetary Medium, Magnetosheath, Magnetospheric Instability, Satellite Observation, Solar Flares, Solar Wind, Heos B Satellite, Magnetopause, Magnetospheric Ion Density, Plasma Density, Shock Wave Propagation

Scientific paper

Experimental data on the near-earth interplanetary plasma and the magnetosheath plasma are analyzed which were obtained by the Prognoz 1, Prognoz 2, and HEOS 2 satellites during early August 1972. The behavior of such solar-wind parameters as velocity, proton number density, and ion temperature during the events of August 4 through August 9 is described in detail, and disturbances coinciding with the arrivals of flare-associated shocks at earth are identified. Data on the magnetosheath plasma are examined in terms of variations of the bow-shock and magnetopause boundaries. The analyses show that strong sharp increases in the solar-wind plasma parameters, which were associated with the arrivals of the interplanetary shocks from the four major flares of August, alternated with periods of slower recovery to the normal levels and that these events caused strong changes in the dimensions of the magnetosphere, ranging from compression by a factor of two to significant expansion, particularly in the morning sector.

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