Physics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305..784l&link_type=abstract
Nature (ISSN 0028-0836), vol. 305, Oct. 27, 1983, p. 784-787. Research supported by the Science and Engineering Research Council
Physics
195
Binary Stars, Cosmic Ray Showers, Cygnus Constellation, Energy Spectra, Gamma Ray Spectra, X Ray Sources, Electromagnetic Pulses, Energetic Particles, Gamma Ray Bursts, Particle Flux Density, Phase Shift
Scientific paper
Data gathered with a small shower array are presented to confirm that the gamma emissions from Cygnus X-3 exceed 1000 TeV, and that the gamma ray spectrum steepens above 10,000 TeV. The deep-water Cerenkov detectors are part of the Haverah Park Array, and were configured in 50-m and 150-m diameter geometry. The events detected were treated by a method of bins denoting energy levels and analyzed with respect to results from the COS B X ray satellite for similar times. Statistical evaluations indicated that the absence of recorded events during 1982 at the ground array were within acceptable standard deviations. The luminosity was actually calculated at 3-10 x 1000 TeV to be 3 x 10 to the 36th erg/sec.
Coy R. N.
Lambert Amaury
Lapikens J.
Lloyd-Evans Jeremy
Patel Manish
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