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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 I. General reconnection jet dynamics
I. Roussev 1 , K. Galsgaard 2 , R. Erd'elyi 3 , and J.G. Doyle 1
1 Armagh Observatory, College Hill, Armagh, BT61 9DG, N. Ireland; email: ilr@star.arm.ac.uk;
2 School of Mathematics and Statistics, University of St. Andrews, St Andrews, Fife KY16 9SS, Scotland; email:
3 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. The aim of the present study is to investigate the reconnection jets formed during the process of
magnetic flux cancellation in the physical environment of the solar transition region. The emission properties of
these jets are then computed for two resonance transition region lines, C iv 1548.2 š A and O vi 1031.9 š A, under
the assumption of non­equilibrium ionization. The numerical modelling involves 2­dimensional (2D) dissipative,
radiative, nonlinear magnetohydrodynamics. The nonlinear anisotropic thermal conduction, radiative losses, and
volumetric heating are taken into account in order to assess their role in the physical situation examined. This
work is a continuation of previous related simulations where small­scale energy depositions were modelled in 1D


Source: Armagh Observatory


Collections: Physics