Search for compact sources of cosmic photons above 200 TeV

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Sokolsky, Pierre
Other Author Ciampa, D. P.; Kolodziejczak, J.; Green, K. D.; Matthews, J.; Nitz, D.,;Sinclair, D.; Thornton, G.; Van Der Velde, J. C.; Cassiday, G. L.; Cooper, R.; Corbato, S. C.; Dawson, B. R.; Elbert, J. W.; Fick, B. E.; Kieda, D. B.; Ko, S.; Liebing, D. F.; Loh, E. C.; Salamon, M. H.; Smith, J. D.; Thomas, S. B.; Wheeler, B.
Title Search for compact sources of cosmic photons above 200 TeV
Date 1992-10
Description From April 1988 to February 1990 we used a two-level array of scintillators to search in the cosmic radiation for compact sources of y rays above 200 TeV. Counters on the surface measured the size and direction of extensive air showers while counters buried 3 m below ground measured their muon content. Showers induced by y rays are expected to have many fewer muons than those initiated by hadrons so the selection of muon-poor showers should greatly reduce the background of hadronic showers. Three objects, Cygnus X-3, the Crab nebula, and Hercules X-l, were examined in detail. Searches were made on short and long time scales and source periodicity was used, where applicable, to enhance any possible signals. We found no evidence for any compact sources.
Type Text
Publisher American Physical Society
Journal Title Physical Review D
Volume 46
Issue 8
First Page 3248
Last Page 3255
DOI 10.1103/PhysRevD.46.3248
citatation_issn 0556-2821
Subject Extensive air showers; Cygnus X-3; Hercules X-1; Crab Nebula; Ultrahigh energies
Subject LCSH Gamma rays; Gamma ray sources; Cosmic rays; Cosmic ray showers; X-ray binaries; Photons; Muons; Particles (Nuclear physics)
Language eng
Bibliographic Citation Ciampa, D. P., Kolodziejczak, J., Green, K. D., Matthews, J., Nitz, D., Sinclair, D., Thornton, G., Van Der Velde, J. C., Cassiday, G. L., Cooper, R., Corbato, S. C., Dawson, B. R., Elbert, J. W., Fick, B. E., Kieda, D. B., Ko, S., Liebing, D. F., Loh, E. C., Salamon, M. H., Smith, J. D., Sokolsky, P., Thomas, S. B., & Wheeler, B. (1992). Search for compact sources of cosmic photons above 200 TeV. Physical Review D, 46(8), 3248-55.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevD.46.3248
Format Medium application/pdf
Format Extent 716,682 bytes
Identifier ir-main,10555
ARK ark:/87278/s6rr2gh6
Setname ir_uspace
ID 703924
Reference URL https://collections.lib.utah.edu/ark:/87278/s6rr2gh6
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