Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes

  title={Upper limits from five years of blazar observations with the VERITAS Cherenkov telescopes},
  author={S. Archambault and A. Archer and W. Benbow and R. Bird and J. Biteau and M. Buchovecky and J. Buckley and V. Bugaev and K. Byrum and M. Cerruti and X. Chen and L. Ciupik and M. P. Connolly and W. Cui and J. Eisch and M. Errando and A. Falcone and Q. Feng and J. Finley and H. Fleischhack and P. Fortin and L. Fortson and A. Furniss and G. Gillanders and S. Griffin and J. Grube and G. Gyuk and M. Hutten and N. H{\aa}kansson and D. Hanna and J. Holder and T. Humensky and C. Johnson and P. Kaaret and P. Kar and N. Kelley-Hoskins and M. Kertzman and D. Kieda and M. Krause and F. Krennrich and S. Kumar and M. Lang and G. Maier and S. McArthur and A. McCann and K. Meagher and P. Moriarty and R. Mukherjee and T. Nguyen and D. Nieto and A. O. D. Bhr'oithe and R. Ong and A. N. Otte and N. Park and J. Perkins and A. Pichel and M. Pohl and A. Popkow and E. Pueschel and J. Quinn and K. Ragan and P. Reynolds and G. Richards and E. Roache and A. Rovero and M. Santander and G. Sembroski and K. Shahinyan and A. Smith and D. Staszak and I. Telezhinsky and J. Tucci and J. Tyler and S. Vincent and S. Wakely and O. Weiner and A. Weinstein and D. Williams and B. Zitzer and M. Fumagalli and J. Prochaska},
  journal={The Astronomical Journal},
Between the beginning of its full-scale scientific operations in 2007 and 2012, the VERITAS Cherenkov telescope array observed more than 130 blazars; of these, 26 were detected as very-high-energy (VHE; E>100 GeV) -ray sources. In this work, we present the analysis results of a sample of 114 undetected objects. The observations constitute a total live-time of 570 hours. The sample includes several unidentified Fermi-Large Area Telescope (LAT) sources (located at high Galactic latitude) as well… Expand

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