We model the hydrodynamic evolution of the plasma confined in a coronal loop, 30,000 km long, subject to theheating of nanoflares due to intermittent magnetic dissipative events in the MHD turbulence produced by loopfootpoint motions. We use the time-dependent distribution of energy dissipation along the loop obtained from ahybrid shell model, occurring for a magnetic field of about 10 G in the corona; the relevant heating per unit volumealong the loop is used in the Palermo-Harvard loop plasma hydrodynamic model.We describe the results, focusing onthe effects produced by the most intense heat pulses, which lead to loop temperatures between 1 and 1.5 MK.

Modeling a coronal loop heated by magnetohydrodynamic turbulence nanoflares

MALARA, Francesco;VELTRI, Pierluigi
2005-01-01

Abstract

We model the hydrodynamic evolution of the plasma confined in a coronal loop, 30,000 km long, subject to theheating of nanoflares due to intermittent magnetic dissipative events in the MHD turbulence produced by loopfootpoint motions. We use the time-dependent distribution of energy dissipation along the loop obtained from ahybrid shell model, occurring for a magnetic field of about 10 G in the corona; the relevant heating per unit volumealong the loop is used in the Palermo-Harvard loop plasma hydrodynamic model.We describe the results, focusing onthe effects produced by the most intense heat pulses, which lead to loop temperatures between 1 and 1.5 MK.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/129965
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