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The cosmic-ray energy spectrum observed by the Fly's Eye
Abstract
We report on the cosmic-ray energy spectrum above 1017 eV as observed by the Fly's Eye detector. The detector has been operated in monocular mode (Fly's Eye I only) since 1981 and in stereo mode (both Fly's Eye I and Fly's Eye II) since 1986. This paper includes data through 1992 July. The cosmic-ray primary energy is measured by integrating over the atmospheric development curve of the extensive air shower produced by the primary particle. The differential monocular energy spectrum above 1017 eV is J(E) = 10-29.55 x (E/1018 eV)-3.07 + or -0.01/sq m/s/sr/eV. We observe a dip in the energy spectrum near 1018.5 using the higher resolution stereo data. A 3 x 1020 eV shower was detected by the monocular Fly's Eye on 1991 October 15.
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Citations
Cited by
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Cline, J. M., Jeon, S., & Moore, G. D. (2004) · Physical Review D · doi:10.1103/physrevd.70.043543 · Cited by 677
The Astrophysics of Ultrahigh-Energy Cosmic Rays
Kotera, K., & Olinto, A. V. (2011) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081710-102620 · Cited by 470
Dark energy from mass varying neutrinos
Fardon, R., Nelson, A. E., & Weiner, N. (2004) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2004/10/005 · Cited by 414
Ultrahigh Energy Cosmic Rays without Greisen-Zatsepin-Kuzmin Cutoff
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Metadata
- Authors
- Bird, D. J., Corbato, S. C., Dai, H. Y., Dawson, B. R., Elbert, J. W., Emerson, B. L., Green, K. D., Huang, M. A., Kieda, D. B., Luo, M., Ko, S., Larsen, C. G., Loh, E. C., Salamon, M. H., Smith, J. D., Sokolsky, P., Sommers, P., Tang, J. K. K., & Thomas, S. B.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1994-03
- Volume
- 424
- Pages
- 491
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1978826366
- Cited by
- 482
- References
- 0
- FWCI
- 16.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- Bird, D. J., Corbato, S. C., Dai, H. Y., Dawson, B. R., Elbert, J. W., Emerson, B. L., Green, K. D., Huang, M. A., Kieda, D. B., Luo, M., Ko, S., Larsen, C. G., Loh, E. C., Salamon, M. H., Smith, J. D., Sokolsky, P., Sommers, P., Tang, J. K. K., & Thomas, S. B. (1994). The cosmic-ray energy spectrum observed by the Fly's Eye. The Astrophysical Journal. https://doi.org/10.1086/173906
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