Kilometric type 3 radio bursts observed from high southern ecliptic latitudes by ULYSSES

Details Kilometric type 3 radio bursts observed from high southern ecliptic latitudes by ULYSSES Kilometric type 3 radio bursts observed from high southern ecliptic latitudes by ULYSSES

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...37r&link_type=abstract

NASA Goddard Space Flight Center, International Solar Wind 8 Conference, p. 37

Physics

Type 3 Bursts, Polar Regions, Remote Sensing, In Situ Measurement, Scatter Propagation, Sun, Circular Polarization, Radio Receivers, Solar Cycles, Ulysses Mission, Ecliptic, Latitude

Scientific paper

The Ulysses URAP experiment has provided the first measurements of remote and in-situ wave phenomena from high southern latitudes. Remote sensing of type 3 solar radio bursts constitute an important component of the Ulysses observations. Type 3 radio emissions, which have never before been viewed from outside the ecplitic plane, have been observed by Ulysses to its maximum southern latitude (approximately 80 deg S), although their frequency of occurrence has generally diminished due to the declining phase of the solar cycle. In addition, the Ulysses radio receiver measures both the direction of arrival and the complete polarization state of incident radiation. These physical parameters provide information on the origin and nature of the radio emission. Preliminary analyses have indicated that kilometric type 3 radiation is often approximately 10-20% circularly polarized at the highest URAP frequencies. New directional information provides crucial information on the effects of beaming and scattering of the radiation in the interplanetary medium.

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