Detection of ultrahigh-energy radiation from Scorpius X-1 - Ooty observations during 1984-1987

Details Detection of ultrahigh-energy radiation from Scorpius X-1 - Ooty observations during 1984-1987 Detection of ultrahigh-energy radiation from Scorpius X-1 - Ooty observations during 1984-1987

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.2248t&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 67, Oct. 21, 1991, p. 2248-2251.

Mathematics

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8

Cosmic Ray Showers, Energetic Particles, Particle Flux Density, Stellar Radiation, X Ray Binaries, Neutron Stars, Stellar Oscillations, Stellar Rotation

Scientific paper

A detailed study of showers arriving from the direction of Scorpius X-1 shows strong evidence for the emission of ultrahigh-energy radiation from Scorpius X-1 during the period 4 March-2 May 1986. Observations of 178 showers are found in the source bin against an expected background of 122.9. The chance probability for observing this excess has been estimated from simulations to be less than 0.001. The flux observed during this period was 6.4 +/-1.6 x 10 exp -12/sq cm/s at energies of greater than 2.5 x 10 exp 14 eV, corresponding to a luminosity of 2 x 10 exp 35 ergs/s.

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