Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh43c..03y&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH43C-03
Astronomy and Astrophysics
Astrophysics
[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7529] Solar Physics, Astrophysics, And Astronomy / Photosphere, [7954] Space Weather / Magnetic Storms
Scientific paper
Understanding the connection between the magnetic configurations of a coronal mass ejection (CME) and their counterpart in the interplanetary medium is very important in terms of space weather predictions. Recent data convincingly demonstrate that fast CME originating from near the solar disk center are the major cause of extreme space weather events. There also appears to be a link between the CME orientation and the direction of the magnetic fields in the underlying flux rope. Many CMEs rotate as they propagate in the interplanetary medium so that the probability of a strong geomagnetic storm depends on both the initial properties of the erupted structure and the interaction between the ejecta and heliospheric magnetic fields. Detailed understanding of this interaction may shed light on the problems related to connecting solar surface phenomena to their interplanetary counterparts. In this presentation I will briefly review current progress on the CME evolution in the heliosphere.
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