Physics
Scientific paper
Sep 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...67..259c&link_type=abstract
Solar Physics, vol. 67, Sept. 1980, p. 259-265.
Physics
15
Extreme Ultraviolet Radiation, Skylab Program, Solar Corona, Solar X-Rays, Spatial Distribution, Spectroheliographs, Aspect Ratio, Magnetohydrodynamic Stability, Morphology, Plasma Cylinders, Plasma Temperature, Solar Physics
Scientific paper
The morphology and spatial distribution of loops in an active region observed from Skylab are described. The active region loops were classified into hot loops with temperatures of 2 to 3 million K observed in coronal lines and X-rays, and cool loops with temperatures of 500,000 to one million K observed in transition zone lines. The brightest hot coronal loops in the active region are predominantly low-lying, compact, closely-packed, showing greater stability than the transition-zone loops, which are fewer in number, are large, and slender. The observed aspect ratio of the hot coronal loops in the range of 0.1 and 0.2 are almost two orders of magnitude larger than those of the Ne VII loops.
Cheng Chung-Chieh
Smith Jeffrey B.
Tandberg-Hanssen Einar
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