Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.9121r&link_type=abstract
American Astronomical Society Meeting 210, #91.21; Bulletin of the American Astronomical Society, Vol. 39, p.207
Physics
Scientific paper
Data was obtained using the Coronal Diagnostic Spectrometer (CDS) instrument on the Solar and Heliospheric Observatory (SOHO). The goal of this project is to analyze the data obtained by the CDS instrument in order to determine the behavior of temperature and density of the coronal loop progressing from the foot point and moving up the loop. The loop being analyzed was observed by CDS on 2003 January 17 and the foot point was located at solar coordinates (585,-472) arcsecs. A background pixel and several pixels on the loop were selected. The background pixel intensity was then subtracted from each loop pixel intensity in order to isolate the emission from each loop pixel. The spectral line intensities of each loop pixel were analyzed to determine which spectral lines had any significant contribution to the loop intensity. The predicted and observed intensities of these significant lines were then used to create a differential emission measure (DEM) curve to best fit each loop pixel emission. Comparison of the DEM curves for each loop pixel indicates that the temperature increases and the density decreases, while progressing up the loop. Solar physics research at the University of Memphis is supported by NSF ATM-0402729 and NASA NNG05GE68G.
Cirtain Jonathan W.
Del Zanna Giulio
DeLuca Edward E.
Mason Harris E.
Rightmire Lisa
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