Coronal mass ejections and magnetic flux ropes in interplanetary spaceCoronal mass ejections (CMEs) are formed in the solar corona by the ejection of material from closed field regions that were not previously participating in the solar wind expansion. CMEs commonly exhibit a signature consisting of a counterstreaming flux of suprathermal electrons with energies above about 80 eV, indicating closed field structures that are either rooted at both ends in the sun or entirely disconnected from it. About 30 percent of all CME events at 1 AU exhibit large, coherent internal field rotations typical of magnetic flux ropes. It is suggested that interplanetary magnetic flux ropes form as a result of reconnection within rising, previously sheared coronal magnetic loops.
Document ID
19920048623
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gosling, J. T. (Los Alamos National Laboratory NM, United States)