Other
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986nascp2442..127s&link_type=abstract
In NASA. Goddard Space Flight Center Coronal and Prominence Plasmas p 127-133 (SEE N87-20871 13-92)
Other
11
Emission Spectra, Extreme Ultraviolet Radiation, Fine Structure, Lyman Spectra, Solar Corona, Solar Prominences, Solar Spectra, Mathematical Models, Radiation Absorption, Solar Magnetic Field, Temperature Effects, Temperature Gradients
Scientific paper
Researchers have used prominence extreme ultraviolet line intensities observed from Skylab to derive the differential emission measure Q(T) in the prominence-corona (PC) interface from 3 x 10,000 to 3 times 1 million K, including the effects of Lyman Continuum absorption. Using lines both shortward and longward of the Lyman limit, researchers have estimated the importance of absorption as function of temperature. The magnitude of the absorption, as well as its rate of increase as a function of temperature, place limits on the thread scales and the character of the interfilar medium. Researchers have calculated models based on three assumed geometries: (1) threads with hot sheaths and cool cores; (2) isothermal threads; and (3) threads with longitudinal temperature gradients along the magnetic field. Comparison of the absorption computed from these models with the observed absorption in prominences shows that none of the geometries is totally satisfactory.
Orrall Frank Q.
Schmahl Ed. J.
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