12–23 Jul 2021
Online
Europe/Berlin timezone

Solar Neutron Decay Protons Observed in November 7, 2004

15 Jul 2021, 18:00
1h 30m
07

07

Talk SH | Solar & Heliospheric Discussion

Speaker

Prof. Yasushi Muraki (Nagoya University, ISEE)

Description

We report here an interesting event that was detected by solar neutron telescopes installed at high altitudes in Bolivia (5250 m a.s.l.) and Mexico (4600 m a.s.l.). The event was observed on November 7th 2004 in association with a large solar flare of magnitude X2.0. Some features of our detectors and in two satellites (GOES 11 and SOHO) reveal the presence of electrons and protons as possible products of neutron decay. Solar neutron decay protons (SNDPs) were recorded previously by the ISEE3 satellite on June 3rd, 1982 . On October 19th, 1989, the ground level detectors installed in Goose Bay and Deep River also detected SNDPs. Therefore this is the second examples such evidence was registered on the Earth's surface. The authors wish to report this work quickly to alert the solar neutron community to the results reported here.

Keywords

solar neutrons, solar neutron decay protons, Solar Energetic Particles

Subcategory Experimental Results

Primary authors

Prof. Yasushi Muraki (Nagoya University, ISEE) Prof. Valdes Galicia (UNAM) Dr Emesto Ortiz (UNAM) Dr Yutaka Matsubara (ISEE, Nagoya University) Prof. Shoichi Shibata (Chubu University) Dr Takashi Sako (ICRR, U-Tokyo) Dr Satoshi Masuda (ISEE, Nagoya University) Prof. Munetoshi Tokumaru (ISEE, Nagoya University) Dr Tatsumi Koi (Chubu University) Dr Akitoshi Oshima (Astronmy Observatory, Chubu University) Prof. Takasuke Sakai (Nihon University, Narashino campus) Dr Tsuguya Naito (Yamanshi Gakuin University) Mr Pedro Miranda (UMSA)

Presentation materials