Comparison of YOHKOH x-ray coronal events with ULYSSES interplanetary events

Details Comparison of YOHKOH x-ray coronal events with ULYSSES interplanetary events Comparison of YOHKOH x-ray coronal events with ULYSSES interplanetary events

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...58l&link_type=abstract

Lockheed Aircraft Corp., International Solar Wind 8 Conference, p. 58

Computer Science

Solar Corona, High Temperature Plasmas, Interplanetary Medium, Ionization, Space Plasmas, Solar Activity, X Ray Telescopes, Plasma Temperature, Solar Magnetic Field, Ulysses Mission, Solar Flares, Sun

Scientific paper

The Yohkoh soft X-ray telescope (SXT) has observed several largescale eruptive events per year for the first three years of observations (Aug. 1991 - Nov. 1994) Such events are most prominent at high latitudes, but resemble long-duration flare events seen in active regions. Some of the high-latitude events have now been identified in the Ulysses/SWICS data base during the Ulysses south polar passage. There are puzzling examples of solar events with no interplanetary counterparts. A comparison of coronal and interplanetary events can lead to better models for mapping interplanetary disturbances back to their source location, especially by combining Yohkoh morphology with three-dimensional representations of the coronal magnetic field. In this paper we describe the parameters of the hot plasma seen by SXT. There is clear evidence for non radial motion in specific events. We present comparisons between the ionization temperature of the interplanetary plasma with that observed at the Sun in cases where this is possible.

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