Physics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...71..237c&link_type=abstract
Solar Physics, vol. 71, June 1981, p. 237-245.
Physics
3
High Resolution, Line Spectra, Solar Activity, Solar Spectra, D Lines, Faculae, H Alpha Line, K Lines, Solar Flares, Solar Granulation, Solar Magnetic Field, Solar Prominences, Spectrographs, Sunspots
Scientific paper
The considered project represents an attempt to provide critical spectroscopic data during the current solar maximum period. The program exploits the possibility of obtaining simultaneous observations in widely separated spectral lines. The lines selected span the height range accessible with ground-based observations, and are suitable for diagnosing the physical conditions in active region sources. The present program is similar in concept to the successful HIRKHAD project reported by Beckers et al. (1972), the main difference being a selection of lines more appropriate for work on solar activity. It is proposed to make observational material available to interested astronomers. High quality spectra of a variety of active region phenomena are obtained, giving attention to flares, plages, surges, sunspots, filaments, and Ellerman bombs.
Cram Lawrence E.
Mann Robert G.
Mauter Horst A.
Phillis Gary L.
Robinson Richard D.
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