Radio-astronomical measurement of the velocity of interplanetary shock waves

Details Radio-astronomical measurement of the velocity of interplanetary shock waves Radio-astronomical measurement of the velocity of interplanetary shock waves

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ge%26ae..28....1v&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 28, Jan.-Feb. 1988, p. 1-8. In Russian.

Astronomy and Astrophysics

Astronomy

6

Interplanetary Medium, Propagation Velocity, Radio Astronomy, Shock Wave Propagation, Astronomical Maps, Deceleration, Scintillation, Space Plasmas

Scientific paper

The velocities of interplanetary shock waves were determined by the radio-astronomical mapping of the scintillation indices of radio sources. It is shown that the shock-wave velocity within 0.2-1.2 AU decreases with distance from the sun as 1/r exp alpha, where alpha ranges from 0.25 to 1. The degree of the delay of shock waves depends on their initial velocity; the radial velocity gradient is approximately proportional to the square of the initial shock-wave velocity.

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