Other
Scientific paper
Mar 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..nes..a002s&link_type=abstract
American Physical Society, New England 2004 Meeting, 26-27 March, 2004, Exeter, NH. MEETING ID: NES04, abstract #A.002
Other
Scientific paper
In late October and early November of 2003 the ACE spacecraft observed the passage of a series of solar ejecta with unusually high speed. These events rank among the highest wind speed observations in the 30+ years of solar wind studies. The ejecta were observed to be driving interplanetary shocks that were the source of accelerated energetic particles. Thermal ion composition measurements recorded on ACE provide insights into the source plasma and evolution of the ejecta. In spite of the unusually high wind speeds, other interplanetary parameters such as the density, temperature, and magnetic field intensity were not record-setting. The solar wind dynamic pressure reached 50 nPa, which together with the negative IMF of -68 nT was suffient to cause intense geomagnetic disturbances at the Earth. We will review observations reported upon in two recent manuscripts that describe the solar ejecta at this time and their consequences for the Earth's magnetosphere.
Skoug Ruth
Smith Charles
Zurbuchen Thomas
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