Computer Science
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.547..323p&link_type=abstract
Proceedings of 'SOHO 13 - Waves, Oscillations and Small-Scale Transient Events in the Solar Atmosphere: A Joint View from SOHO a
Computer Science
Scientific paper
Radiance values in the quiet Sun follow a lognormal distribution, with shape and scaling parameters varying significantly over the temperature range from chromosphere to corona. We show that these distributions can be reproduced by a simple model, which assumes that the radiance is produced by a stochastic (micro-, nano-) flaring process. This allows the diagnostic capabilities of the radiance distribution to be judged, performing, e.g., estimates of the true damping times of the flares. Several energy distributions are tested for the flaring process, like a Gaussian and a power law. The resulting time series are compared with SUMER time series of equivalent sampling, after adjustment of the parameters of the simulation. A good statistical match of the measurements is obtained for a steep power law distribution of nanoflare energies.
Pauluhn Anuschka
Solanki Sami K.
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