Accession Number : AD0681615

Title :   SOLAR WIND AND THE SHOCK WAVE PROPAGATING FROM FLARES THROUGH INTERPLANETARY SPACE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Dvoryashin,A. S.

Report Date : 27 JUN 1968

Pagination or Media Count : 16

Abstract : The spiral structure of the interplanetary magnetic field, resulting from continuous radial expansion of the solar corona in interplanetary space, is confirmed by the results of an investigation of temporal regularities in absorption phenomena in the polar cap due to high-energy particles from proton flares. On the basis of a sufficiently large number of cases it was found that the propagation velocity of the agent, responsible for the sudden commencement (SC) of magnetic storms, through interplanetary space is higher by a factor of 2-4 than that of the solar wind. It is concluded that the SC of magnetic storms is due to the passage of the earth through a collisionless shock front. In one case the width of the front computed for a collisionless shock wave at small Mach numbers coincided with that of the front measured directly in interplanetary space. The structure of the interplanetary magnetic field, deformed by the propagating shock wave from the sun is discussed. (Author)

Descriptors :   (*SOLAR FLARES, SOLAR WIND), (*SOLAR WIND, SHOCK WAVES), SPACE ENVIRONMENTS, MAGNETIC FIELDS, SOLAR CORONA, MAGNETIC STORMS, PROTONS, USSR

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE