English

Modeling a coronal loop heated by MHD-turbulence nanoflares

Astrophysics 2009-11-13 v1

Abstract

We model the hydrodynamic evolution of the plasma confined in a coronal loop, 30000 km long, subject to the heating of nanoflares due to intermittent magnetic dissipative events in the MHD turbulence produced by loop footpoint motions. We use the time-dependent distribution of energy dissipation along the loop obtained from a hybrid shell model, occurring for a magnetic field of about 10 G in corona; the relevant heating per unit volume along the loop is used in the Palermo-Harvard loop plasma hydrodynamic model. We describe the results focussing on the effects produced by the most intense heat pulses, which lead to loop temperatures between 1 and 1.5 MK.

Keywords

Cite

@article{arxiv.astro-ph/0506694,
  title  = {Modeling a coronal loop heated by MHD-turbulence nanoflares},
  author = {F. Reale and G. Nigro and F. Malara and G. Peres and P. Veltri},
  journal= {arXiv preprint arXiv:astro-ph/0506694},
  year   = {2009}
}

Comments

21 pages, 8 figures, journal article

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