Computer Science
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mwoc.conf..393y&link_type=abstract
Multi-Wavelength Observations of Coronal Structure and Dynamics -- Yohkoh 10th Anniversary Meeting. Proceedings of the conferenc
Computer Science
Scientific paper
A X9.4/3B flare at 11:52 UT on 6 November, 1997 is the most intense gamma-ray event which Yohkoh has observed so far. Gamma-ray lines resulting from nuclear de-excitation (C line at 4.44 MeV and O line at 6.13 MeV), neutron capture (2.22 MeV) and positron annihilation (0.51 MeV) were measured. Further, the Oriented Scintillation Spectrometer Experiment on board Compton Gamma-Ray Observatory recorded flare-associated neutrons after the intense gamma-ray emission was over. The neutron time profile suggests the possibility of extended particle acceleration. We discuss characteristics of high-energy particles at the flare site based on the available data of gamma rays, neutrons and X-ray images and compare them with those of CME-associated solar energetic particles.
Hirayama Hideo
Murphy Ronald J.
Ogawa Hideo
Share Gerald H.
Yoshimori Masato
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