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Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/12438
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dc.contributor.authorAbu-Zayyad, T.-
dc.contributor.authorBelov, K.-
dc.contributor.authorBird, D.-
dc.contributor.authorBoyer, J.-
dc.contributor.authorCao, Z.-
dc.contributor.authorCatanese, M.-
dc.contributor.authorChen, G.-
dc.contributor.authorClay, R.-
dc.contributor.authorCovault, C.-
dc.contributor.authorDai, H.-
dc.contributor.authorDawson, B.-
dc.contributor.authorElbert, J.-
dc.contributor.authorFick, B.-
dc.contributor.authorFortson, L.-
dc.contributor.authorFowler, J.-
dc.contributor.authorGibbs, K.-
dc.contributor.authorGlasmacher, M.-
dc.contributor.authorGreen, K.-
dc.contributor.authorHo, Y.-
dc.contributor.authorHuang, A.-
dc.contributor.authoret al.-
dc.date.issued2001-
dc.identifier.citationThe Astrophysical Journal: an international review of astronomy and astronomical physics, 2001; 557(2 Part 1):686-699-
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357-
dc.identifier.urihttp://hdl.handle.net/2440/12438-
dc.description© 2001. The American Astronomical Society-
dc.description.abstractWe study the spectrum and average mass composition of cosmic rays with primary energies between 1017 and 1018 eV using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the Michigan Muon Array (MIA). Measurements have been made of the change in the depth of shower maximum as a function of energy. A complete Monte Carlo simulation of the detector response and comparisons with shower simulations leads to the conclusion that the cosmic-ray intensity is changing from a heavier to a lighter composition in this energy range. The spectrum is consistent with earlier Fly's Eye measurements and supports the previously found steepening near 4 × 1017 eV.-
dc.description.statementofresponsibilityT. Abu-Zayyad, K. Belov, D. J. Bird, J. Boyer, Z. Cao, M. Catanese, G. F. Chen, R. W. Clay, C. E. Covault, H. Y. Dai, B. R. Dawson, J. W. Elbert, B. E. Fick, L. F. Fortson, J. W. Fowler, K. G. Gibbs, M. A. K. Glasmacher, K. D. Green, Y. Ho, A. Huang, C. C. Jui, M. J. Kidd, D. B. Kieda, B. C. Knapp, S. Ko, C. G. Larsen, W. Lee, E. C. Loh, E. J. Mannel, J. Matthews, J. N. Matthews, B. J. Newport, D. F. Nitz, R. A. Ong, K. M. Simpson, J. D. Smith, D. Sinclair, P. Sokolsky, P. Sommers, C. Song, J. K. K. Tang, S. B. Thomas, J. C. van der Velde, L. R. Wiencke, C. R. Wilkinson, S. Yoshida, and X. Z. Zhang-
dc.language.isoen-
dc.publisherUniv Chicago Press-
dc.source.urihttp://dx.doi.org/10.1086/322240-
dc.subjectcosmic rays-
dc.subjectISM: abundances-
dc.titleMeasurement of the cosmic-ray energy spectrum and composition from 1017to 1018.3 eV using a hybrid technique-
dc.typeJournal article-
dc.identifier.doi10.1086/322240-
pubs.publication-statusPublished-
dc.identifier.orcidClay, R. [0000-0002-9040-9648]-
dc.identifier.orcidDawson, B. [0000-0002-4271-3055]-
Appears in Collections:Aurora harvest 7
Physics publications

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