Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh43a..01y&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SH43A-01
Physics
7507 Chromosphere, 7513 Coronal Mass Ejections (2101), 7519 Flares, 7524 Magnetic Fields, 7531 Prominence Eruptions
Scientific paper
Coronal mass ejections (CMEs) and their interplanetary counterparts, interplanetary CMEs (ICMEs) usually exhibit a complex structure that very often includes a magnetic cloud (MC), which is thought to be a magnetic fluxrope. Our recent study indicates the orientation of a halo CME elongation may correspond to the orientation of the underlying flux rope. This is a continuation of the research and here we compare orientation angles of elongated LASCO CMEs, both halo and partial to the EIT post eruption arcades (PEA). Data for 100 events had been analyzed and er report the following: i) it is further supported that majority of halo CMEs are elongated in the direction of the aixial field of PEA arcades. This relationship is found to be weeker for partial CME and those events that originate further from the disk center. There also is an indication that events in the northern hemisphere generally exhibit better correlation that those in the southern hemisphere.
Tripathi Durga Dutt
Yurchyshyn Vasyl
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