Energetic properties of interplanetary plasma at the earth's orbit following the August 4, 1972 flare

  title={Energetic properties of interplanetary plasma at the earth's orbit following the August 4, 1972 flare},
  author={C. d'Uston and J. Bosqued and F. Cambou and V. V. Temny and G. Zastenker and O. Vaisberg and E. G. Eroshenko},
  journal={Solar Physics},
Solar wind and interplanetary magnetic field data were obtained by the PROGNOZ 1 and PROGNOZ 2 satellites during the period following the August 4, 1972 (06∶21 UT) solar flare. A thermalized plasma was recorded one hour after the shock followed two hours later by the plasma ‘piston’ with a bulk velocity higher than 1700 km s-1. The comparison between the PROGNOZ and PIONEER 9 solar wind data shows an attenuation of the plasma properties with the deflection from the flare's meridian. 
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