Abstract
view Abstract Citations (59) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Electron densities in a solar flare derived from X-ray spectra McKenzie, D. L. ; Broussard, R. M. ; Landecker, P. B. ; Rugge, H. R. ; Young, R. M. ; Doschek, G. A. ; Feldman, U. Abstract A major solar flare was observed with the rubidium acid phthalate crystal of the satellite-borne SOLEX B spectrometer and high-resolution solar X-ray spectra were obtained during the rising phase of the flare. Measurements of the density-sensitive line ratio of the O VII 1s2 1S(0) - 1s2s 3S(1) (22.10 A) flux to the O VII 1s2 1S(0) - 1s2p 3P(1) (21.80 A) flux indicate that the density of the plasma at around 2,000,000 K exceeded 10 to the 11th per cu cm near the peak of the flare. This corresponds to an electron pressure of about 30 dynes per sq cm. Publication: The Astrophysical Journal Pub Date: May 1980 DOI: 10.1086/183254 Bibcode: 1980ApJ...238L..43M Keywords: Electron Density (Concentration); Satellite Observation; Solar Electrons; Solar Flares; Solar Physics; X Ray Spectra; Electron Pressure; Satellite-Borne Instruments; Solar Spectrometers; Solar Physics full text sources ADS |
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