Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsp53a..05p&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SP53A-05
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7511 Coronal Holes, 7524 Magnetic Fields, 7526 Magnetic Reconnection (2723, 7835)
Scientific paper
Recent solar observations have revealed that coronal jets are a more frequent phenomenon than previously believed. It is widely accepted that magnetic reconnection is the fundamental mechanism that gives rise to the jets. The improved spatial and temporal resolution of the STEREO observations in combination with stereoscopy yields new insights into the origins of coronal jets, and provides detailed data that can be used to test and refine models. We present the results of 3D numerical simulations of our model for coronal jets. The simulations were performed with our state-of-art adaptive mesh MHD solver ARMS. The basic idea of the model is that a jet is due to the release of twist as a closed field region undergoes interchange reconnection with surrounding open field. The photospheric driven evolution of the structure results in the generation of a non linear Alfven wave along the open fields. Using stereoscopic EUVI images, we reveal the presence of such twisted structure in a coronal jet event. This work was supported, in part, by NASA and ONR.
Antiochos Spiro K.
DeVore Richard C.
Pariat Etienne
Patsourakos Spiros
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