Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1096r&link_type=abstract
Journal of Geophysical Research (Space Physics), Volume 108, Issue A2, pp. SSH 13-1, CiteID 1096, DOI 10.1029/2002JA009588
Astronomy and Astrophysics
Astrophysics
17
Interplanetary Physics: Ejecta, Driver Gases, And Magnetic Clouds, Solar Physics, Astrophysics, And Astronomy: Coronal Mass Ejections, Interplanetary Physics: Interplanetary Magnetic Fields, Interplanetary Physics: Solar Wind Plasma
Scientific paper
We study the distribution of magnetic helicity in interplanetary coronal mass ejections (CMEs) separated into magnetic clouds and remnants of the prominence structures for three cases with identified remnants of prominences. The magnetic configurations of magnetic clouds and prominence remnants can satisfactorily be described by the flux rope approximation. It is shown that the magnetic helicities in both parts of the CMEs have the same sign. This sign is consistent with the dominance of CMEs with negative helicity in the northern hemisphere and positive in the southern hemisphere. The results are discussed in the context of different models of CME eruption at the Sun.
Hu Qiang
Martin Sara
Ruzmaikin Alexander
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