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Influence of Coronal Abundance VariationsDuring the final year of this program we concentrated on understanding the how to constrain the models with the best available observations. Work on developing accurate temperature and density diagnostics fkom TRACE and CDS together with constrained fits of non-potential force free fields will be extremely useful in the guiding the next generation of coronal models. The program has produced three fully operation numerical codes that model multi-species of ions in coronal loops: Static models and constant flow models. The time dependent numerical models have not been completed. We have extended the steady flow investigations to study the effect these flows have on coronal structure as observed with TRACE. Coronal observations derive from heavy-ion emission; thus, we focus on the extent to which flow may modify coronal abundances by examining the heavy-ion abundance stratification within long-lived loops. We discuss the magnitudes of the physical effects modeled and compare simulated results with TRACE observations. These results can have a profound effect on the interpretation of TRACE observations.
Document ID
20050192620
Acquisition Source
Headquarters
Document Type
Contractor or Grantee Report
Authors
Gurman, Joseph
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
DeLuca, Edward
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Date Acquired
September 7, 2013
Publication Date
May 1, 2005
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAG5-10872
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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