Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975assl...54..379c&link_type=abstract
In: Image processing techniques in astronomy; Proceedings of the International Conference, Utrecht, Netherlands, March 25-27, 19
Astronomy and Astrophysics
Astronomy
Ground Stations, Imaging Techniques, Photosphere, Satellite Observation, Solar Corona, Spaceborne Astronomy, Astronomical Maps, Flying Spot Scanners, Morphology, Solar Atmosphere, Solar Observatories, Stellar Spectrophotometry, X Ray Astronomy
Scientific paper
Using NASA facilities in space (OSO-7) and on the ground (Goddard multi-channel spectrophotometer at Sacramento Peak, New Mexico) an active region has been mapped. By combining these ultraviolet, X-ray, and visible data, a physical picture of this structured region was constructed from the photosphere to the corona, corresponding to temperature regimes from 4500 K to 4,000,000 K. The morphology of the active region was studied by comparing grey-shaded images in which fine details stand out more clearly than in the contour plots. One result of the study is that gross similarities persist from the low photosphere up to high in the transition region, while some changes occur in the corona.
Chapman Robert Dewitt
Epstein Gabriel L.
Hobbs Richard W.
Neupert Werner M.
Thomas Robert J.
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