Energetic characteristics and structure of the plasma and magnetic field behind the shock wave from the powerful solar flare of August 4, 1972

Details Energetic characteristics and structure of the plasma and magnetic field behind the shock wave from the powerful solar flare of August 4, 1972 Energetic characteristics and structure of the plasma and magnetic field behind the shock wave from the powerful solar flare of August 4, 1972

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..212t&link_type=abstract

Kosmicheskie Issledovaniia, vol. 15, Mar.-Apr. 1977, p. 212-222. In Russian.

Computer Science

Cosmic Plasma, Energy Spectra, Interplanetary Magnetic Fields, Shock Waves, Solar Flares, Solar Wind, Rarefied Plasmas, Satellite Observation, Thermal Energy

Scientific paper

The paper investigates the temporal variation of solar-wind plasma and magnetic-field parameters measured near earth by the Prognoz and Prognoz 2 satellites during a 10-hour period after the passage of the interplanetary shock wave from the solar flare of August 4, 1972. Relations among solar-wind kinetic, magnetic, and thermal energy densities are analyzed, and a number of characteristic structural formations are distinguished. These include: (1) a plasma region heated to such a high temperature that its thermal and kinetic energy densities were commensurate; (2) a plasma piston which arrived two hours after the shock front and in which the kinetic energy flux attained a value of 100 erg/sq cm per sec while the thermal energy flux was no more than 3% of this; and (3) a region of hot rarefied plasma with a reduced magnetic-field intensity immediately behind the piston and accompanied by rapid growth, a plateau, and decay of high-energy particle intensity.

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