Some results of the spectropolarimetric investigation of Ellerman bombs

Details Some results of the spectropolarimetric investigation of Ellerman bombs Some results of the spectropolarimetric investigation of Ellerman bombs

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..661k&link_type=abstract

In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze

Physics

Linear Polarization, Ellerman Bombs, Spectropolarimetric Observations

Scientific paper

Ellerman bombs (EB) or moustaches are enigmatic phenomena of solar atmosphere and mechanisms of their excitation are still unclear. There are two main models of their explanation. Thermal model implies the compression and heating of small regions of solar atmosphere. According to the non-thermal model the beams of energetic particles are considered as the source of EB origin. If the EB have thermal origin, then there is a large possibility that they will show a prominent center-to limb variation of the Hα line profiles. The Hα line polarization would be about 2-3% both in the line core and in the wings. The moustaches arisen as the result of bombardment by energetic particle beams will show a polarization observed in the Hα line core only. The form of these Hα line profiles would correlate with their life time. The contribution presents an investigation of the Hα line profiles in EB which showed the polarization of different types. We also make an attempt to analyse correlation between the life time and the form of the Hα line profiles obtained for three long-living moustaches, which showed significant linear polarization in the line core.

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