Spectroscopic analysis of prominence emissions

Details Spectroscopic analysis of prominence emissions Spectroscopic analysis of prominence emissions

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...197..274b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 197, no. 1-2, May 1988, p. 274-280.

Astronomy and Astrophysics

Astrophysics

9

Optical Thickness, Solar Prominences, Solar Spectra, Calcium, Emission Spectra, H Beta Line, Spatial Resolution

Scientific paper

Prominence spectra of fairly high spatial resolution of 3arcsec to 4arcsec are analysed. The total optical thickness of the Ca+K emission is determined from the self-absorption factor, using the true upper level population obtained from the Ca+8542 emission. Turbulence values determined from the widths of optically thin lines show fair agreement with microturbulence values obtained from the emission relation of the optically thick Ca+H and K lines. Variations of the emission ratio E8542/Eβ in prominences may be related to different gas pressures.

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