Magnetic Reconnection in Plasmas

Session

Morning V

51

14 Aug 2015, 09:00

132:028 (Nordita, Stockholm)

Conveners

Morning V

• Tomas Karlsson (KTH)

358. Polar observation of a tripolar guide-field perturbation during a dayside magnetopause reconnection exhaust

Dr Stefan Eriksson (University of Colorado)

14/08/2015, 09:00

Workshop, August 10-14

Invited

Hall currents generate a characteristic quadrupole out-of-plane magnetic field at a single X-line for a weak background guide-field and relatively symmetric conditions of plasma density and magnetic field strength across a reconnecting current sheet. This is observed as a bipolar perturbation of the out-of-plane magnetic field (BM) across the exhaust region as, e.g., reported...

347. How far are we from complete understanding of the reconnection process?

Dr Vadim Roytershteyn

14/08/2015, 09:30

Workshop, August 10-14

Keynote

Recent simulations have revealed complex details of magnetic reconnection than on the first glance bring into question many established concepts in magnetic reconnection. As an example, it is not clear whether the concept of the diffusion region, a theoretical construct deeply ingrained into all things reconnection, can be usefully extended to 3D reconnection. At the same...

373. `Realistic' 3D simulations of a small flare resulting from flux emergence

Prof. Viggo Hansteen (Institute of Theoretical Astrophysics, University of Oslo)

14/08/2015, 10:15

Workshop, August 10-14

Oral

We have performed three-dimensional (3d) magnetohydrodynamic simulations of magnetic flux emergence in a model that spans the convection zone and into the outer solar atmosphere with the Bifrost code. This is a ``realistic'' model, in the sense that the parameters and physical effects that control the atmosphere can be used to produce diagnostics that can be directly compared...