- Conference date: 25-30 Jun 1995
- Location: Dana Point, California (USA)
Interplanetary scintillation (IPS) observations were made with radio telescopes of the STE Lab. (327 MHz) and the EISCAT facilities (932 MHz) in 1993 and 1994 to investigate the dependence of the parallel component of velocity fluctuation on flow speeds. Preliminary analyses show the following results; 1) in high speed winds ( at distances beyond 0.3 AU) increases with approaching the sun, 2) Low speed winds ( at distances beyond 0.3AU) have a small at all distances. Here, is the solar wind velocity observed with the IPS method. Since the parallel fluctuation component is expected to be related to magnetoacoustic waves near the sun, the results infer that magnetoacoustic waves have some relation to the acceleration of high speed solar winds.
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