Temperature and density structure of hot and cool loops derived from the analysis of TRACE data

Details Temperature and density structure of hot and cool loops derived from the analysis of TRACE data Temperature and density structure of hot and cool loops derived from the analysis of TRACE data

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.505..203t&link_type=abstract

In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 Jun

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Loops Filamentation, Hydrostatic Models, Trace

Scientific paper

We address the plasma structuring both across and along the magnetic field in two sets of solar coronal loops, observed with TRACE in the 171 Å and 195 Å passbands. We derive, after proper background removal, the density stratification and the thermal structure of the plasma in the fibrils forming the loops with two techniques: a) filter ratio diagnostic (195 Å/171 Å) and b) modeling intensity profiles along the fibrils with hydrostatic models. We find evidence of a hot fibril (T ~ 5×106K), with temperature and density stratification well-described with a typical non-isothermal hydrostatic loop model, and evidence of rather cold fibrils (T ~ 2×105K), isothermal and probably in dynamic conditions.

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