Evidence for 1018-eV neutral particles from the direction of Cygnus X-3.

نویسندگان

  • Cassiday
  • Cooper
  • Dawson
  • Elbert
  • Fick
  • Green
  • Ko
  • Liebing
  • Loh
  • Salamon
  • Smith
  • Sokolsky
  • Sommers
  • Thomas
چکیده

Analysis of the cumulative Fly's Eye data reveals an excess of air showers from the direction of Cygnus X-3 at energies above 0.5 x 10 eV. No point source has previously been identified at such high energies. The probability of this excess arising as a chance clustering of isotropic cosmic rays is 6.5 x 10. The inferred signal flux is (2.0 ± 0.6) x 10 particles/cms. The Cygnus X-3 4.8-h periodicity is weakly present in the data.

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عنوان ژورنال:
  • Physical review letters

دوره 62 4  شماره 

صفحات  -

تاریخ انتشار 1989