Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44l.199w&link_type=abstract
PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 44, no. 5, p. L199-L204.
Astronomy and Astrophysics
Astronomy
31
Interplanetary Medium, Magnetohydrodynamic Stability, Solar Corona, Solar Prominences, Solar Wind, Spaceborne Astronomy, H Alpha Line, Japanese Spacecraft, Solar Limb, Solar X-Rays
Scientific paper
Two examples of coronal events associated with two erupting-filament events observed from different angles are discussed. These are coronal/interplanetary disturbances associated with the disappearance of a 35-deg-long quiescent filament occurring near the solar disk center, observed on September 28, 1991, and with a 25 deg long eruptive prominence at the eastern solar limb, which took place on November 7, 1991. In both cases, bright soft X-ray arcades were observed with the Yohkoh Soft X-ray Telescope about 2-3 hr after the onset of H-alpha events. A transient coronal hole was formed in the immediate vicinity of the disappearing filament on Septemper 28, suggesting that the formation of the new coronal hole was a cause of the filament disappearance.
Acton Loren W.
Harvey Karen L.
Joselyn Jo Ann
Klimchuk James A.
Kojima Masayoshi
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