Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh23a0348h&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SH23A-0348
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7519 Flares, 7554 X-Rays, Gamma Rays, And Neutrinos
Scientific paper
We present analysis of all RHESSI microflares, covering GOES class A through C , encompassing over 4 years of observations. Well over 10,000 microflares were found using our own flare finding algorithm, that scans the 6-12 keV energy range, finding considerably more than the standard RHESSI flare list. Each microflare is automatically analysed: the source size is found by forward fitting the complex visibilities and the spectral parameters (temperature, emission measure, power-law index) are found by forward fitting a thermal plus non-thermal spectral model. The combination of these allows us to compute the thermal and non-thermal energy in each of the microflares. We present the thermal and non-thermal energy distributions of these microflares and how the ratio of these two energy components changes for different characteristics of the microflares. This work is funded by NASA grant NAS5-98033.
Christe Steven Daniel
Hannah Iain G.
Krucker Sa"m
Lin Robert P.
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