Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993s%26t....86...20p&link_type=abstract
Sky & Telescope (ISSN 0037-6604), vol. 86, no. 3, p. 20-25.
Astronomy and Astrophysics
Astronomy
1
Solar Atmosphere, Solar Corona, Solar Flares, Solar Observatories, Solar X-Rays, Spaceborne Astronomy, X Ray Imagery, Astronomical Photography, Coronal Holes, Coronal Loops, Solar Magnetic Field, Temperature Distribution, X Ray Spectra
Scientific paper
Japan's Yohkoh soft/hard X-ray and gamma-ray telescope-equipped spacecraft has thus far yielded unprecedentedly detailed views of the solar corona; attention is here given to a 10-minute time-lapse film sequence of solar coronal activity which dramatizes the expansion of observation capabilities Yohkoh offers. It is in this way seen that powerful eruptions at the limb of the sun often evolve into helmet-shaped streamers which are clearly visible in X-rays for more than 1 million km above the solar surface. Also, activity in one location can quickly affect activity in another. Yohkoh-based flare-loop studies give attention to the association between soft X-ray loops and 'kernels' observed in red hydrogen light.
Acton L. L.
Bruner Marilyn
Collins Petersen Carolyn
Ogawara Yoshiaki
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