Coronal mass ejections in the solar wind at high solar latitudes: An overviewUlysses provided the first direct measurements of coronal mass ejections (CME's) in the solar wind at high heliographic latitudes. An overview of new results from the plasma experiment on Ulysses and magnetic field measurements, during the spacecraft's first excursion to high solar latitudes are summarized. A striking aspect of the high-latitude CME's observed is that they all had high speeds, with the overall average speed being 730 km/sec. A new class of forward-reverse shock pairs, associated with expansion of CME's was discovered at high latitudes. Of six certain CME's observed at high latitudes, three have associated shock pairs of this nature. Combined Ulysses and Yohkoh observations suggest that the flux rope topology characteristic of some CME's results from reconnection within the legs of neighboring magnetic loops embedded within the escaping CME's.
Document ID
19950025494
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gosling, Jack T. (Los Alamos National Lab. NM, United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1994
Publication Information
Publication: ESA, Proceedings of 3rd SOHO Workshop on Solar Dynamic Phenomena and Solar Wind Consequences