Quiet and active solar structures as observed at the bottom of the transition region

Details Quiet and active solar structures as observed at the bottom of the transition region Quiet and active solar structures as observed at the bottom of the transition region

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..197b&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 197-2

Computer Science

Emission Spectra, Line Spectra, Stellar Structure, Sun, Ultraviolet Radiation, Brightness, Chromosphere, Distribution (Property), Flux Density, High Resolution

Scientific paper

A set of high resolution profiles of H Lyman alpha and beta, Mg II h and k, Ca II H and K lines measured simultaneously above different solar structures, is presented. The large data base provides a way of correlating different parameters in the different lines: L alpha reversal versus intensity, L alpha versus Ca K, and so on. It is noticed that Mg II and Ca II have a similar behavior, different from L alpha and beta ones. Two classifications derived from the distribution of intensities, from which average (cell, network, plage, sunspot) profiles are computed for the 6 lines, are discussed. The Ca results are compared with the two dimensional models of Solanki et al.

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