Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...655..591r&link_type=abstract
The Astrophysical Journal, Volume 655, Issue 1, pp. 591-597.
Astronomy and Astrophysics
Astronomy
27
Sun: Activity, Sun: Corona, Sun: Coronal Mass Ejections (Cmes), Sun: Magnetic Fields, Sun: Solar Wind
Scientific paper
Posteruptive arcades are frequently seen in the aftermath of coronal mass ejections (CMEs). The formation of these loops at successively higher altitudes, coupled with the classic ``two-ribbon'' flare seen in Hα, are interpreted as reconnection of the coronal magnetic field that has been dragged outward by the CME. White-light observations of ``rays,'' which have been interpreted as being coincident with the current sheet at the reconnection site underneath the erupting CME, also provide evidence for its occurrence. ``Blobs'' occasionally seen within these rays suggest an even richer level of structure. In this report, we present numerical simulations that reproduce both the observed rays and the formation and evolution of the blobs. We compare their properties with SOHO/LASCO observations of similar structures, and relate their formation to standard theories of reconnection.
Clark Eric
Ko Yuan-Kuen
Lin Jun
Linker Jon
Lionello Roberto
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