Formation of several current sheets preceding a series of flares above the active region AR 0365

Details Formation of several current sheets preceding a series of flares above the active region AR 0365 Formation of several current sheets preceding a series of flares above the active region AR 0365

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008arep...52..666p&link_type=abstract

Astronomy Reports, Volume 52, Issue 8, pp.666-675

Astronomy and Astrophysics

Astronomy

4

96.60.Hv, 96.60.Qe, 96.60.Iv

Scientific paper

We have carried out 3D MHD modeling of the solar corona above the active region AR 0365 before a series of flares observed on May 26 27, 2003. Maps of the evolving photospheric magnetic fields preceding the flares were used as boundary conditions. An emergence of new flux equal to ˜1.5 × 1022 Maxwell preceded the observed series of X-ray flares. Modeling a large region 4 × 1010 cm in size demonstrates the formation of several current sheets in the vicinities of coronal Xlines, both already existing in the initial potential field and arising due to the emergence of the new magnetic flux. Each current sheet could be responsible for an elementary flare.

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