Computer Science
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..598..145w&link_type=abstract
SOLAR AND GALACTIC COMPOSITION: A Joint SOHO/ACE Workshop. AIP Conference Proceedings, Volume 598, pp. 145-150 (2001).
Computer Science
2
Composition, Solar Wind Plasma, Sources Of Solar Wind, Interplanetary Magnetic Fields
Scientific paper
We present a study of the elemental composition of a sub-set of coronal mass ejections, namely events which have been identified of being of the magnetic cloud type (MC). We used plasma data from the MTOF sensor of the CELIAS instrument of the SOHO mission. So far we have investigated MCs of 1997 and 1998. The study covers the proton, alpha, and heavy ion elemental abundances. Considerable variations from event to event exist with regard to the density of the individual species with respect to regular ``slow'' solar wind preceding the MC plasma. However, two general features are observed. First, for the heavy elements (carbon through iron), which can be regarded as tracers in the solar wind plasma, a mass-dependent enrichment of ions monotonically increasing with mass is observed. The enrichment can be explained by a previously published theoretical model assuming coronal plasma loops on the solar surface being the precursor structure of the MC. Second, when comparing the MC plasma to regular solar wind composition, a net depletion of the lighter ions, helium through oxygen, is always observed. Proton and alpha particle abundances have to be regarded separately since they represent the main plasma. .
Bochsler Peter
Galvin Antoinette B.
Ipavich Fred M.
Issautier Karine
Paquette John A.
No associations
LandOfFree
Composition of magnetic cloud plasmas during 1997 and 1998 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Composition of magnetic cloud plasmas during 1997 and 1998, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition of magnetic cloud plasmas during 1997 and 1998 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1234043