A study of ultraviolet and X-ray emissions of selected solar regions

Details A study of ultraviolet and X-ray emissions of selected solar regions A study of ultraviolet and X-ray emissions of selected solar regions

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...149..123s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 149, no. 1, Aug. 1985, p. 123-134.

Astronomy and Astrophysics

Astronomy

37

Coronal Holes, Solar Activity, Ultraviolet Astronomy, X Ray Astronomy, Emission Spectra, Solar Spectra, Solar Temperature, Statistical Distributions

Scientific paper

Apollo Telescope Mount-based Skylab observations of quiet regions, coronal holes, and active regions of various sizes and in various stages of evolution are studied. Total intensities in coronal emissions are noted to increase more rapidly than linearly with total intensities in chromospheric emissions, and areas of active regions determined from chromospheric emissions are found to be systematically larger than areas determined from transition region emissions. The coronal X-ray temperature, as well as the average intensities of active regions, depend on the area of the active region, on Ca II intensity, and on relative coverage by sunspots.

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