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Driving Currents for Flux Rope Coronal Mass Ejections View all abstracts by submitter

Prasad Subramanian   Submitted: 2008-10-23 22:38

We present a method for measuring electrical currents enclosed by flux rope structures that are ejected within solar coronal mass ejections (CMEs). Such currents are responsible for providing the Lorentz self-force that propels CMEs. Our estimates for the driving current are based on measurements of the propelling force obtained using data from the LASCO coronagraphs aboard the SOHO satellite. We find that upper limits on the currents enclosed by CMEs are typically around 1010 Amperes. We estimate that the magnetic flux enclosed by the CMEs in the LASCO field of view is a few imes 1021 Mx.

Authors: Prasad Subramanian, Angelos Vourlidas
Projects: SoHO-LASCO

Publication Status: Accepted for publication in the Astrophysical Journal
Last Modified: 2008-10-24 06:47
Go to main E-Print page  Global shallow water magnetohydrodynamic waves in the solar tachocline  The Current Sheet Associated with the 2003 November 4 Coronal Mass Ejection: Density, Temperature, Thickness and Line Width  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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