Computer Science
Scientific paper
Jul 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..382..113m&link_type=abstract
Proceedings of the eigth international solar wind conference: Solar wind eight. AIP Conference Proceedings, Volume 382, pp. 113
Computer Science
Particle Emission, Solar Wind, Particle Measurements
Scientific paper
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 (δV∥) on flow speeds. Preliminary analyses show the following results; 1) δV∥ in high speed winds (VIPS>~500 km/s at distances beyond 0.3 AU) increases with approaching the sun, 2) Low speed winds (VIPS<~400 km/s at distances beyond 0.3AU) have a small δV∥ at all distances. Here, VIPS 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.
Kojima Masayoshi
Misawa Hiroaki
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