Explosive instability and erupting flux tubes in a magnetized plasma

Author:

Cowley S. C.12ORCID,Cowley B.3,Henneberg S. A.4ORCID,Wilson H. R.4ORCID

Affiliation:

1. CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, UK

2. Department of Physics, Imperial College, Prince Consort Road, London SW7 2BZ, UK

3. Department of Physics, University College London, London WC1E 6BT, UK

4. York Plasma Institute, Department of Physics, University of York, Heslington, York YO10 5DD, UK

Abstract

The eruption of multiple flux tubes in a magnetized plasma is proposed as a mechanism for explosive release of energy in plasmas. A significant fraction of the linearly stable isolated flux tubes are shown to be metastable in a box model magnetized atmosphere in which ends of the field lines are embedded in conducting walls. The energy released by destabilizing such field lines can be a large proportion of the gravitational energy stored in the system. This energy can be released in a fast dynamical time.

Publisher

The Royal Society

Subject

General Physics and Astronomy,General Engineering,General Mathematics

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