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Nonlocal thermal transport in solar flares. II - Spectroscopic diagnosticsPhysical parameters obtained for a flaring solar atmosphere in an earlier paper are used here to predict time-dependent emission-line profiles and integrated intensities as a function of position for two spectral lines commonly observed during solar flares: the X-ray resonance lines of Ca XIX and Mg XI. Considerations of ionization nonequilibrium during the rise phase of the flare are addressed, and the effects on the predicted spectral-line characteristics are discussed. It is concluded that some spectroscopic diagnostics favor the nonlocal model, but other long-standing discrepancies between the numerical models and the observations remain unresolved.
Document ID
19890043829
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Karpen, Judith T.
(Naval Research Lab. Washington, DC, United States)
Cheng, Chung-Chieh
(Naval Research Lab. Washington, DC, United States)
Doschek, George A.
(Naval Research Lab. Washington, DC, United States)
Devore, C. Richard
(U.S. Navy, Naval Research Laboratory, Washington DC, United States)
Date Acquired
August 14, 2013
Publication Date
March 15, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 338
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
89A31200
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-14075
Distribution Limits
Public
Copyright
Other

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