Other
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1218m&link_type=abstract
American Astronomical Society, SPD meeting #40, #12.18; Bulletin of the American Astronomical Society, Vol. 41, p.830
Other
Scientific paper
Despite much progress toward understanding the dynamics of the corona, the physical properties of coronal loops are not yet fully understood. Recent investigations and observations from different instruments have yielded contradictory results about the true physical properties of coronal loops, specifically as to whether the observed loops are isothermal structures or the convolution of several multi-thermal strands. In this poster, we introduce a new technique to determine if an observed loop is isothermal or multi-thermal. We will determine the evolution of loops in multiple filter images from the Transition Region and Coronal Explorer (TRACE). Our new technique will calculate the delay of the loop between different filter images, calculate a cooling time, and determine if that cooling time is consistent with the observed lifetime. We will present preliminary results that show if the temperature structure across coronal loops is isothermal or multi-thermal.
Aschwanden Markus J.
Mulu Fana
Warren Harry P.
Winebarger Amy R.
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