Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...243..660b&link_type=abstract
Astrophysical Journal, Part 1, vol. 243, Jan. 15, 1981, p. 660-676.
Astronomy and Astrophysics
Astronomy
8
Emission Spectra, Line Spectra, Solar Corona, Solar X-Rays, Continuous Spectra, High Resolution, Iron, Neon, X Ray Astronomy
Scientific paper
The high spatial and spectral resolution solar X-ray observations of an active region in which an X-ray and radio gradual rise and fall was in progress are reported. The correlations of highly collimated X-ray scans with the magnetic data indicate the presence of a hot localized region of X-ray emission near the end of the magnetic neutral line. A thermal interpretation of the continuum observed from this region is consistent with an emission temperature of 3 x 10 to the 48th/cu cm and an electron temperature of 10 to the 7th K. A model of the temperature distribution of the X-ray emitting material within the collimator field of view is derived using the resonance lines of Ne X, Ne IX, and Fe XVII. Most of the emission measure is at temperatures less than 2,000,000 K, but some high-temperature material with an electron temperature between 5,000,000 K and 7,000,000 K is required.
Barrus Michael D.
Blake Richard L.
Burek Anthony J.
Fenimore Edward E.
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