Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh41b1127n&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SH41B-1127
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7524 Magnetic Fields
Scientific paper
A large study has recently been completed (in press at Astrophys. Jour.) of coronal loop structures observed by TRACE (with its < 1" resolution) in all three extreme-ultraviolet (EUV) filters at 171, 195, and 284 A. One of the results is that all of the fitted, uncontaminated loops with widths < 2000 km are consistent with a single temperature cross-section. This, in turn, leads to the conclusion that TRACE has resolved "elementary" or "monolithic" loop strands, in terms of thermal homogeneity over the loop cross-section. This further implies, due to the inhibition of cross-field transport in the corona (because the plasma-beta parameter is low), that the loop heating occurs below the corona in the transition region or chromosphere, where the plasma-beta values are higher allowing for possible cross-field transport. Several cases of measurements and results of acceptable isothermal fits of "elementary" loop strands (not shown in the original paper) will be presented. Also to be displayed are comparisons between extracted original images and high-pass filtered images utilized in the analysis and conclusions above. This work was supported in part by NASA under the TRACE contract NAS5-38099.
Aschwanden Markus J.
Nightingale Richard W.
No associations
LandOfFree
Examples of Elementary Coronal Loop Strands as Observed by TRACE does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Examples of Elementary Coronal Loop Strands as Observed by TRACE, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Examples of Elementary Coronal Loop Strands as Observed by TRACE will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-758448