Investigation of the Large Scale Evolution and Topology of Coronal Mass Ejections in the Solar Wind

Details Investigation of the Large Scale Evolution and Topology of Coronal Mass Ejections in the Solar Wind Investigation of the Large Scale Evolution and Topology of Coronal Mass Ejections in the Solar Wind

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001stin...0138125r&link_type=abstract

Technical Report, Science Applications International Corp.; SciberNet, Inc. San Diego, CA United States; San Diego, CA United St

Computer Science

Numerical Analysis

Coronal Mass Ejection, Solar Wind, Topology, Evolution (Development), Ulysses Mission, Numerical Analysis, Magnetohydrodynamics

Scientific paper

This investigation is concerned with the large-scale evolution and topology of coronal mass ejections (CMEs) in the solar wind. During the course of this three-year investigation, we have undertaken a number of studies that are discussed in more detail in this report. For example, we conducted an analysis of all CMEs observed by the Ulysses spacecraft during its in-ecliptic phase between 1 and 5 AU. In addition to studying the properties of the ejecta, we also analyzed the shocks that could be unambiguously associated with the fast CMEs. We also analyzed a series of 'density holes' observed in the solar wind that bear many similarities with CMEs. To complement this analysis, we conducted a series of 1-D and 2 1/2-D fluid, MHD, and hybrid simulations to address a number of specific issues related to CME evolution in the solar wind. For example, we used fluid simulations to address the interpretation of negative electron temperature-density relationships often observed within CME/cloud intervals. As part of this investigation, a number of fruitful international collaborations were forged. Finally, the results of this work were presented at nine scientific meetings and communicated in eight scientific, refereed papers.

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