Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14....3s&link_type=abstract
Advances in Space Research, vol. 14, no. 4, p. (4)3-(4)11
Astronomy and Astrophysics
Astronomy
Coronal Holes, Coronal Loops, Satellite Observation, Solar Corona, Solar Flares, Solar X-Rays, X Ray Telescopes, Charge Coupled Devices, High Resolution, Japanese Spacecraft, Solar Activity, Spaceborne Astronomy
Scientific paper
The Yohkoh payload includes a Soft X-ray Telescope (SXT) which is capable of taking high-resolution (2.5 arcsec) images of the Sun through several X-ray and optical filters. A Charge Coupled Devices (CCD) camera provides images with a low background, and large dynamic range and at a rapid cadence (greater than 2 s), which enables the SXT to observe the effects of flares while continuing to observe the fainter quiet-Sun features. We present the observations from the SXT that illustrate how the faint coronal loops that make up the complex structure of the quiet Sun evolve on a variety of timescales from seconds to months. We describe a variety of coronal structures, such as coronal holes, bright points, the large-scale quiet coronal loops, and active regions, to show the wide range of opportunities that Yohkoh presents to further our understanding of the solar corona.
Strong Keith Temple
YOHKOH Team
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