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Astronomy & Astrophysics manuscript no. (will be inserted by hand later)
 

Summary: Astronomy & Astrophysics manuscript no.
(will be inserted by hand later)
Modelling of explosive events in the solar transition region in a
2D environment
Part II. Various MHD experiments
I. Roussev 1;2 , K. Galsgaard 3 , R. Erd'elyi 4 , and J.G. Doyle 2
1 High Altitude Observatory, NCAR, 3450 Mitchell Lane, Boulder, CO 80301, USA; e­mail: ilr@ucar.edu
2 Armagh Observatory, College Hill, Armagh, BT61 9DG, N. Ireland; e­mail: ilr@star.arm.ac.uk;
jgd@star.arm.ac.uk
3 School of Mathematics and Statistics, University of St. Andrews, St Andrews, Fife KY16 9SS, Scotland; e­mail:
klaus@mcs.st­and.ac.uk
4 Space & Atmosphere Research Center, Dept. of Applied Mathematics, University of Sheffield, Hicks Building,
Hounsfield Road, Sheffield, S3 7RH, England; e­mail: Robertus@sheffield.ac.uk
Received date, accepted date
Abstract. We examine the response of various physical environments representing the solar atmosphere to a
magnetic reconnection event. The reconnection is driven by a localized increase of the magnetic diffusivity in the
current concentration formed between two magnetic fluxes of opposite polarity. The time dependent evolution is
then followed by numerically solving the 2­dimensional (2D) dissipative magnetohydrodynamic (MHD) equations,
including also effects of thermal conduction, radiative losses, and volumetric heating.
This work continues a previous related study (Roussev et al. 2001a), and compares results obtained from exploring

  

Source: Armagh Observatory

 

Collections: Physics