Pulsations in the solar wind and on the ground

Details Pulsations in the solar wind and on the ground Pulsations in the solar wind and on the ground

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26..547p&link_type=abstract

Planetary and Space Science, vol. 26, June 1978, p. 547-553. Research supported by the Science Research Council of England.

Other

Geomagnetic Pulsations, Magnetic Variations, Solar Terrestrial Interactions, Solar Wind, Bow Waves, Earth Magnetosphere, Heos Satellites, Interplanetary Magnetic Fields, Magnetic Signatures, Shock Waves

Scientific paper

Observations of Pc 3-4 activity made at the Borok observatory in the USSR in the 0300-1000 U.T. range are compared with measurements made by the HEOS-1 satellite in the solar wind upstream from the earth's bow shock. Eight events were found to show similar periods, while another event showed similar onset times but had different dominant periodicities at the two locations. It is suggested that pulsation activity at the satellite is the result of protons counter-streaming along the interplanetary field lines. It is noted that the Borok and HEOS observations exhibit the greatest similarity when the interplanetary field is directed away from the sun, and that both categories of measurement show an inverse proportionality to the magnitude of the interplanetary field. Internal magnetospheric processes as a mechanism of Pc 3-4 generation are also discussed.

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