Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT

Y. Muraki, J. F. Valdés-Galicia, L. X. González, K. Kamiya, Y. Katayose, K. Koga, H. Matsumoto, S. Masuda, Y. Matsubara, Y. Nagai, M. Ohnishi, Shunsuke Ozawa, T. Sako, S. Shibata, M. Takita, Y. Tanaka, H. Tsuchiya, K. Watanabe, J. L. Zhang

Research output: Contribution to journalConference article

Abstract

At the 33rd ICRC, we reported the possible detection of solar gamma rays by a ground level detector and later re-examined this event. On March 7, 2011, the solar neutron telescope (SNT) located at Mt. Sierra Negra, Mexico (4,600 m) observed enhancements of the counting rate from19:49 to 20:02 UT and from 20:50 to 21:01 UT. The statistical significance was 9.7σ and 8.5σ, respectively. This paper discusses the possibility of using this mountain detector to detect solar gamma rays. In association with this event, the solar neutron detector SEDA-FIB onboard the International Space Station has also detected solar neutrons with a statistical significance of 7.5σ. The FERMI-LAT detector also observed high-energy gamma rays from this flare with a statistical significance of 6.7σ. We thus attempted to make a unified model to explain this data. We also report on another candidate for solar gamma rays detected on September 25th, 2011 by the SNT located in Tibet (4,300 m) from 04:37 to 04:47 UT with a statistical significance of 8.0σ (by the Li-Ma method).

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 2017 Jan 1
Event35th International Cosmic Ray Conference, ICRC 2017 - Bexco, Busan, Korea, Republic of
Duration: 2017 Jul 102017 Jul 20

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solar neutrons
gamma rays
telescopes
neutrons
detectors
Tibet
neutron counters
Mexico
International Space Station
mountains
flares
counting
augmentation

ASJC Scopus subject areas

  • General

Cite this

Muraki, Y., Valdés-Galicia, J. F., González, L. X., Kamiya, K., Katayose, Y., Koga, K., ... Zhang, J. L. (2017). Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT. Proceedings of Science.

Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT. / Muraki, Y.; Valdés-Galicia, J. F.; González, L. X.; Kamiya, K.; Katayose, Y.; Koga, K.; Matsumoto, H.; Masuda, S.; Matsubara, Y.; Nagai, Y.; Ohnishi, M.; Ozawa, Shunsuke; Sako, T.; Shibata, S.; Takita, M.; Tanaka, Y.; Tsuchiya, H.; Watanabe, K.; Zhang, J. L.

In: Proceedings of Science, 01.01.2017.

Research output: Contribution to journalConference article

Muraki, Y, Valdés-Galicia, JF, González, LX, Kamiya, K, Katayose, Y, Koga, K, Matsumoto, H, Masuda, S, Matsubara, Y, Nagai, Y, Ohnishi, M, Ozawa, S, Sako, T, Shibata, S, Takita, M, Tanaka, Y, Tsuchiya, H, Watanabe, K & Zhang, JL 2017, 'Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT', Proceedings of Science.
Muraki, Y. ; Valdés-Galicia, J. F. ; González, L. X. ; Kamiya, K. ; Katayose, Y. ; Koga, K. ; Matsumoto, H. ; Masuda, S. ; Matsubara, Y. ; Nagai, Y. ; Ohnishi, M. ; Ozawa, Shunsuke ; Sako, T. ; Shibata, S. ; Takita, M. ; Tanaka, Y. ; Tsuchiya, H. ; Watanabe, K. ; Zhang, J. L. / Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT. In: Proceedings of Science. 2017.
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title = "Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT",
abstract = "At the 33rd ICRC, we reported the possible detection of solar gamma rays by a ground level detector and later re-examined this event. On March 7, 2011, the solar neutron telescope (SNT) located at Mt. Sierra Negra, Mexico (4,600 m) observed enhancements of the counting rate from19:49 to 20:02 UT and from 20:50 to 21:01 UT. The statistical significance was 9.7σ and 8.5σ, respectively. This paper discusses the possibility of using this mountain detector to detect solar gamma rays. In association with this event, the solar neutron detector SEDA-FIB onboard the International Space Station has also detected solar neutrons with a statistical significance of 7.5σ. The FERMI-LAT detector also observed high-energy gamma rays from this flare with a statistical significance of 6.7σ. We thus attempted to make a unified model to explain this data. We also report on another candidate for solar gamma rays detected on September 25th, 2011 by the SNT located in Tibet (4,300 m) from 04:37 to 04:47 UT with a statistical significance of 8.0σ (by the Li-Ma method).",
author = "Y. Muraki and Vald{\'e}s-Galicia, {J. F.} and Gonz{\'a}lez, {L. X.} and K. Kamiya and Y. Katayose and K. Koga and H. Matsumoto and S. Masuda and Y. Matsubara and Y. Nagai and M. Ohnishi and Shunsuke Ozawa and T. Sako and S. Shibata and M. Takita and Y. Tanaka and H. Tsuchiya and K. Watanabe and Zhang, {J. L.}",
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T1 - Analysis of solar gamma rays and solar neutrons detected on March 7th and September 25th of 2011 by ground level neutron telescopes, SEDA-FIB and FERMI-LAT

AU - Muraki, Y.

AU - Valdés-Galicia, J. F.

AU - González, L. X.

AU - Kamiya, K.

AU - Katayose, Y.

AU - Koga, K.

AU - Matsumoto, H.

AU - Masuda, S.

AU - Matsubara, Y.

AU - Nagai, Y.

AU - Ohnishi, M.

AU - Ozawa, Shunsuke

AU - Sako, T.

AU - Shibata, S.

AU - Takita, M.

AU - Tanaka, Y.

AU - Tsuchiya, H.

AU - Watanabe, K.

AU - Zhang, J. L.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - At the 33rd ICRC, we reported the possible detection of solar gamma rays by a ground level detector and later re-examined this event. On March 7, 2011, the solar neutron telescope (SNT) located at Mt. Sierra Negra, Mexico (4,600 m) observed enhancements of the counting rate from19:49 to 20:02 UT and from 20:50 to 21:01 UT. The statistical significance was 9.7σ and 8.5σ, respectively. This paper discusses the possibility of using this mountain detector to detect solar gamma rays. In association with this event, the solar neutron detector SEDA-FIB onboard the International Space Station has also detected solar neutrons with a statistical significance of 7.5σ. The FERMI-LAT detector also observed high-energy gamma rays from this flare with a statistical significance of 6.7σ. We thus attempted to make a unified model to explain this data. We also report on another candidate for solar gamma rays detected on September 25th, 2011 by the SNT located in Tibet (4,300 m) from 04:37 to 04:47 UT with a statistical significance of 8.0σ (by the Li-Ma method).

AB - At the 33rd ICRC, we reported the possible detection of solar gamma rays by a ground level detector and later re-examined this event. On March 7, 2011, the solar neutron telescope (SNT) located at Mt. Sierra Negra, Mexico (4,600 m) observed enhancements of the counting rate from19:49 to 20:02 UT and from 20:50 to 21:01 UT. The statistical significance was 9.7σ and 8.5σ, respectively. This paper discusses the possibility of using this mountain detector to detect solar gamma rays. In association with this event, the solar neutron detector SEDA-FIB onboard the International Space Station has also detected solar neutrons with a statistical significance of 7.5σ. The FERMI-LAT detector also observed high-energy gamma rays from this flare with a statistical significance of 6.7σ. We thus attempted to make a unified model to explain this data. We also report on another candidate for solar gamma rays detected on September 25th, 2011 by the SNT located in Tibet (4,300 m) from 04:37 to 04:47 UT with a statistical significance of 8.0σ (by the Li-Ma method).

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