On the Interpretation of Prominence Spectra. III. The Line and Continuous Spectrum of a Loop Prominence and Limb Flare.

Abstract

view Abstract Citations (29) References (6) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the Interpretation of Prominence Spectra. III. The Line and Continuous Spectrum of a Loop Prominence and Limb Flare. Jefferies, J. T. ; Orrall, F. Q. Abstract A detailed photometric study is presented of the line and continuous spectrum of the limb flare of June 9, 1959. The electron temperature is found to be certainly less than 24000 K in the bright, dense central portion of the flare, where the hydrogen lines and continuum are excited. The flare occurred as a condensation in an active coronal region, yet the temperature is only slightly higher than that observed in a spray-type flare that originated at the chromospheric level We tentatively suggest temperatures of 10000 and 20000 K, respectively, for "cool" and "hot" prominence classes suggested by Zirin and Tandberg-Nanssen. Publication: The Astrophysical Journal Pub Date: May 1961 DOI: 10.1086/147100 Bibcode: 1961ApJ...133..963J full text sources ADS | Related Materials (5) Part 1: 1958ApJ...127..714J Part 2: 1961ApJ...133..946J Part 4: 1961ApJ...134..747J Part 5: 1962ApJ...135..109J Part 6: 1963ApJ...137.1232J