The Role of the Photosphere During Solar Eruptions

Details The Role of the Photosphere During Solar Eruptions The Role of the Photosphere During Solar Eruptions

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh41c03f&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SH41C-03 INVITED

Physics

7513 Coronal Mass Ejections, 7519 Flares

Scientific paper

From time to time various researchers have proposed that solar flares or coronal mass ejections (CMEs) are driven by a surge of electromagnetic energy flowing either from the convection zone or the photosphere into the corona. However, this point of view is difficult to reconcile with the extremely tranquil conditions that exist in the photosphere during flares and CMEs. Models based on the storage of magnetic energy prior to an eruption also transfer energy from the convective zone to the corona, but this process occurs over a long time period on the order of hours to days prior to the CME. The photospheric motions are directly observed, while the build-up of current which results from them can be inferred from vector magnetograms and changes in field-aligned plasma structures.

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