Other
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..801..403s&link_type=abstract
ASTROPHYSICAL SOURCES OF HIGH ENERGY PARTICLES AND RADIATION. AIP Conference Proceedings, Volume 801, pp. 403-407 (2005).
Other
1
Solar Flares, Solar Corona, Solar Radiation, X-Ray Sources (Astronomical), Solar Electromagnetic Emission
Scientific paper
Hard X-ray emission during solar flares indicates usually presence of two or more sources, interpreted as regions of precipitation of non-thermal electrons propagating along the legs of the flaring magnetic loops. These sources often show asymmetry in hard X-ray fluxes. The brighter source is usually located in a weaker photospheric magnetic field region. For a simple interpretation a weaker convergence of magnetic field lines in a loop's leg with a weaker magnetic field allows more electrons to reach the chromosphere.
Another possibility is that the source of the energy release is located closer to one end of the loop. In this case this footpoint can be brighter in hard X-ray independently on the strength of the underlying magnetic field. In this paper we present example of a flare in which possible electron acceleration site is located asymmetrically, near one of the footpoint at the place where two magnetic loops interact.
Falewicz Robert
Siarkowski Marek
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