Authors: Y Taroyan R Erdélyi S J Bradshaw
Publish Date: 2011/01/19
Volume: 269, Issue: 2, Pages: 295-307
Abstract
It has been established that small scale heating events known as nanoflares are important for solar coronal heating if the powerlaw distribution of their energies has a slope α steeper than −2 α−2 Forward modeling of impulsively heated coronal loops with a set of prescribed powerlaw indices α is performed The powerlaw distribution is incorporated into the governing equations of motion through an impulsive heating term The results are converted into synthetic Hinode/EIS observations in the 40″ imaging mode using a selection of spectral lines formed at various temperatures It is shown that the intensities of the emission lines and their standard deviations are sensitive to changes in α A method based on a combination of observations and forward modeling is proposed for determining whether the heating in a particular case is due to small or large scale events The method is extended and applied to a loop structure that consists of multiple strands
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