Physics
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....8.3029y&link_type=abstract
Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int
Physics
Scientific paper
Yohkoh observed hard Xand gamma-rays from a X9.4 flare on November 6, 1997. Strong gamma-rays were emitted in 11:52-11:56 UT (peak phase). After that, weak and extended gamma-ray production lasted for 600s (extended phase). The OSSE aboard CGRO detected neutrons associated with this flare between 12:08 and 12:28 UT. The neutron count-rate time profile exhibit a gradually decrease with time. We derive the proton spectra and the timing of particle acceleration to explain the observed neutron time profile. The proton spectra of E-3.5 in the peak phase and of E-3.0 in the extended phase give a good fit to the observed neutron time profile. We present detailed calculations of the neutron arrival time profiles and discuss high-energy particle production processes from the gamma-ray neutron observations.
Murphy Ronald J.
Nakayama Shojun
Ogawa Hideo
Share Gerald H.
Suga Kazuharu
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