Correlation of STEREO\EUVI Luminosity and Active-Region Non-potentiality

Details Correlation of STEREO\EUVI Luminosity and Active-Region Non-potentiality Correlation of STEREO\EUVI Luminosity and Active-Region Non-potentiality

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsp31a..07s&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SP31A-07

Physics

7509 Corona, 7524 Magnetic Fields, 7549 Ultraviolet Emissions, 7594 Instruments And Techniques

Scientific paper

New observations from the STEREO observatory provide the ability to simultaneously view active regions on the sun's corona from two different viewpoints. Recent work has been accomplished, by Aschwanden et. al. (2008), that has shown the ability to recreate three dimensional loops' structure from these simultaneous stereoscopic images. We will discuss preliminary results on the success of using the shape of these loop structures combined with linear force free magnetic field extrapolations of SOHO/MDI photospheric field measurements to determine the non-potentiality of an active region. Our goal is to monitor the evolution of the non-potentiality of several active regions to see if changes in the non-potentiality are related to changes in the active region's luminosity.

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