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Title:
A survey of soft X-ray limb flare images - The relation between their structure in the corona and other physical parameters
Authors:
Pallavicini, R.; Serio, S.; Vaiana, G. S.
Affiliation:
AA(Harvard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, Mass; Arcetri, Osservatorio Astrofisico, Florence, Italy), AB(Harvard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, Mass; Osservatorio Astrofisico, Palermo, Italy), AC(Harvard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, Mass; Osservatorio Astrofisico, Palermo, Italy)
Publication:
Astrophysical Journal, Part 1, vol. 216, Aug. 15, 1977, p. 108-122. Research supported by the Consiglio Nazionale delle Ricerche; (ApJ Homepage)
Publication Date:
08/1977
Category:
Solar Physics
Origin:
STI
NASA/STI Keywords:
Solar Corona, Solar Flares, Solar Limb, Solar X-Rays, Spaceborne Astronomy, Astronomical Photography, Grazing Incidence Telescopes, Magnetic Field Configurations, Skylab Program, Solar Flux Density, Solar Prominences, Tables (Data)
DOI:
10.1086/155452
Bibliographic Code:
1977ApJ...216..108P

Abstract

The data used in the investigation were obtained by the American Science and Engineering S-054 experiment on board Skylab. The instrument employed was a grazing incidence X-ray telescope which records images of the sun on film. The morphology of limb flares is investigated and the observed spatial structure is related with the other physical parameters of the region (temperature, density, characteristic times, and energy density). It is concluded that two physically distinct classes of flares exist that differ both in their morphology and in the physical properties which characterize the emitting regions.

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arXiv e-prints