An analysis of SKYLAB X-ray pictures of a giant coronal arch

Details An analysis of SKYLAB X-ray pictures of a giant coronal arch An analysis of SKYLAB X-ray pictures of a giant coronal arch

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..146..343s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 146, no. 2, p. 343-356.

Physics

22

Coronal Loops, Electron Acceleration, Imaging Spectrometers, Solar Corona, Solar Flares, X Ray Imagery, High Resolution, Skylab Program, Solar Maximum Mission, Spatial Resolution

Scientific paper

The nature of the limb event of August 13/14, 1973 imaged by Skylab in soft X-rays is discussed on the basis of the analysis of Skylab X-ray images. The analysis leads to the conclusion that the Skylab event was a giant coronal arch, similar to those observed in 1980-1986 on SMM. The high-spatial-resolution Skylab observations support Kopp and Poletto (1990) interpretation of the giant arches as a reconnection process high in the corona and different from the reconnection process which, at lower altitudes, creates the eruptive-flare loops. However, contrary the Kopp and Pneuman (1976) mechanism of sequential reconnection of previously opened field lines, this arch was formed by interactions of large-scale loops present above the flaring active region.

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