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Upper limits on high-energy solar neutrons from satellite-detected flares with the Yangbajing neutron monitor
Speakers
- Dr. HARUFUMI TSUCHIYA
Primary authors
- Dr. HARUFUMI TSUCHIYA (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
Co-authors
- Dr. Hiromasa MIYASAKA (Caltech, Pasadena, CA 91125, USA)
- Mrs. Emiko TAKAHASHI (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
- Mr. Susumu SHIMODA (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
- Mr. Yutaka YAMADA (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
- Prof. Ichirou KONDOU (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
- Prof. Kazuo MAKISHIMA (RIKEN, 2-1, Wako, Saitama 351-0198, Japan)
- Dr. F. ZHU (Institute of High Energy Physics, Beijing, 100049, China)
- Prof. Y. TAN (Institute of High Energy Physics, Beijing, 100049, China)
- Prof. H. HU (Institute of High Energy Physics, Beijing, 100049, China)
- Prof. Y. TANG (China Meteorological Administration, Beijing 100049, China)
- Prof. J. ZHANG (Institute of High Energy Physics, Beijing, 100049, China)
- Prof. H. LU (Institute of High Energy Physics, Beijing, 100049, China)
- Prof. X. MENG (Tibet University, Lhasa 850000)
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Abstract content
The Yangbajing neutron monitor is suitable for observing solar neutrons in association with solar flares due to a location with an altitude of 4,300 m above sea level. Using data of the Yangbajing neutron monitor obtained during 1998 and 2001, we searched for solar neutrons from individual solar flares detected by BATSE and Yohkoh. No signal due to solar neutrons was found in coincidence with those solar flares. The 95 \% confidence level upper limits on the integral flux of solar neutrons above 100 MeV were obtained, assuming a power-law index of the energy spectrum is -3,-4 and -5. The derived upper limits are compared with integral fluxes of solar neutrons obtained by past observations using other neutron monitors as well as satellites.
If this papers is presented for a collaboration, please specify the collaboration
the Yangbajing NM collaboration
Reference
Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 1 (SH), pages 49-52
