Astronomy and Astrophysics – Astronomy
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spd....28.0130t&link_type=abstract
American Astronomical Society, SPD meeting #28, #01.30; Bulletin of the American Astronomical Society, Vol. 29, p.884
Astronomy and Astrophysics
Astronomy
1
Scientific paper
The SOHO Extreme ultraviolet Imaging Telescope (EIT) recorded a series of events on April 1, 1997 with a 12-minute cadence of 195 Angstrom (Fe XII) images. A Moreton wave was observed emanating from a flaring active region beginning at 13:56 UT 1-April-1997. The wave travelled at initial speeds of approximately 300 km/sec, spreading across the solar disk radially from the flare. The CME observed by SOHO/LASCO was observable at both the east and west limbs in the C2 (2-6 solar radii) and C3 (3.7-30 solar radii) coronagraphs. The event was the site of strong emerging flux, and a number of explosive jet-like surges were observed at the east edge of the region prior to, throughout, and following the event. The discussion will include topology, comparison to Moreton wave/MHD theory predictions, and solar wind signatures.
Cyr Orville Chris St.
Gurman Joe B.
Newmark Jeffrey S.
Stezelberger S.
Thompson Barbara J.
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