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VERITAS upper limit on the very high energy emission from the radio galaxy NGC 1275

  • V. A. Acciari
  • , E. Aliu
  • , T. Arlen
  • , T. Aune
  • , M. Bautista
  • , M. Beilicke
  • , W. Benbow
  • , D. Boltuch
  • , S. M. Bradbury
  • , J. H. Buckley
  • , V. Bugaev
  • , K. Byrum
  • , A. Cannon
  • , O. Celik
  • , A. Cesarini
  • , L. Ciupik
  • , P. Cogan
  • , W. Cui
  • , R. Dickherber
  • , C. Duke
  • S. J. Fegan, J. P. Finley, P. Fortin, L. Fortson, A. Furniss, N. Galante, D. Gall, K. Gibbs, G. H. Gillanders, S. Godambe, J. Grube, R. Guenette, G. Gyuk, D. Hanna, J. Holder, D. Horan, C. M. Hui, T. B. Humensky, A. Imran, P. Kaaret, N. Karlsson, M. Kertzman, D. Kieda, A. Konopelko, H. Krawczynski, F. Krennrich, M. J. Lang, S. Lebohec, G. Maier, A. McCann

Research output: Contribution to journalArticlepeer-review

Abstract

The recent detection by the Fermi γ-ray space telescope of high-energy γ-rays from the radio galaxy NGC1275 makes the observation of the very high energy (VHE: E>100GeV) part of its broadband spectrum particularly interesting, especially for the understanding of active galactic nuclei with misaligned multi-structured jets. The radio galaxy NGC 1275 was recently observed by VERITAS at energies above 100GeV for about 8hr. No VHE γ-ray emission was detected by VERITAS from NGC 1275. A 99% confidence level upper limit of 2.1% of the Crab Nebula flux level is obtained at the decorrelation energy of approximately 340GeV, corresponding to 19% of the power-law extrapolation of the Fermi Large Area Telescope result.

Original languageEnglish (US)
Pages (from-to)L275-L280
JournalAstrophysical Journal
Volume706
Issue number2 PART 2
DOIs
StatePublished - 2009

Keywords

  • Galaxies: Seyfert
  • Galaxies: individual (NGC 1275, 3C 84, Perseus A)
  • Gamma rays: observations

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