Physics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh23b0353f&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SH23B-0353
Physics
7509 Corona, 7549 Ultraviolet Emissions, 7554 X-Rays, Gamma Rays, And Neutrinos, 7594 Instruments And Techniques
Scientific paper
We present for the first time, 3D electron temperatures determined from a tomographic analysis of a time series of EUV images taken in multiple bands. The method, developed theoretically in a previous paper [Frazin et al. 2005, ApJ v. 628, p. 1070], involves a combination of solar rotational tomography (SRT) and classical differential emission measure (DEM) analysis. SRT uses solar rotation to "undo" the line-of-sight integrals, while DEM analysis determines the temperature in each voxel. Although temporal variations of the solar corona limit the applicability to structures that remain relatively stable on long time scales (days), we find that we can achieve consistent results for certain types of objects such as sub-polar quiet regions at solar minimum. We anticipate dramatic increases in the time resolution of this technique with the STEREO mission.
Frazin Richard A.
Kamalabadi Farzad
Vasquez A.
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