Astrophysics and Space Science

, Volume 151, Issue 1, pp 149–156 | Cite as

Possible transient emission from Cygnus X-3 at TeV energies during October 1985 radio flare

  • H. S. Rawat
  • V. K. Senecha
  • R. C. Rannot
  • M. L. Sapru
  • A. K. Tickoo
  • C. L. Bhat
  • R. K. Koul
  • H. Razdan
  • S. C. Tonwar
Article

Abstract

The Gulmarg gamma-ray telescope (threshold energy ∼6 TeV) was tracking Cygnus X-3 on four days in October 1985, around the time the source produced one of its most outstanding radio flares. Examined here is the behaviour of the event rates recorded during this period with a time-resolution of 216 s. Two episodes of higher event rates, each several minutes in duration and having a Poissonian significance of ∼4σ, were recorded on 10 and 12 October, suggesting possible activity at TeV energies during the radio flare period of Cygnus X-3.

Keywords

Flare Event Rate Threshold Energy High Event High Event Rate 

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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • H. S. Rawat
    • 1
  • V. K. Senecha
    • 1
  • R. C. Rannot
    • 1
  • M. L. Sapru
    • 1
  • A. K. Tickoo
    • 1
  • C. L. Bhat
    • 1
  • R. K. Koul
    • 1
  • H. Razdan
    • 1
  • S. C. Tonwar
    • 2
  1. 1.Nuclear Research LaboratoryBhabha Atomic Research CentreSrinagarIndia
  2. 2.Tata Institute of Fundamental ResearchBombayIndia

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