Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh11c0725l&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SH11C-0725
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7519 Flares, 7524 Magnetic Fields
Scientific paper
Observations of the solar corona show that some flares appear to be caused by the collision and reconnection of magnetic flux tubes. We investigate this possibility by studying, both numerically and analytically, the interaction and reconnection of colliding pairs of twisted flux tubes. In particular, we present an analytical model based on various parameters of flux tube collisions, such as tube twist, length and collision angle, which predicts whether a flux tube pair will reconnect once and slingshot or reconnect twice and tunnel (see Linton et al. ApJ 2001 533, 905). We then test these predictions against numerical simulations of the same flux tube interactions, and find good agreement between the two. This analytical model, therefore, should be a useful tool in the analysis and prediction of solar flare events due to flux tube collisions. This work was supported by NASA and ONR grants, and a grant of computer time from the DoD/HPC Program.
Antiochos Spiro K.
Dahlburg Russell B.
Linton Mark G.
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