Article

The first VERITAS telescope

School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK; Physics Department, University of Utah, Salt Lake City, UT 84112, USA; Physics Department, Faculty of Science, Tanta University, Tanta 31527, Egypt; Department of Physics, University of Massachussetts, Amherst, MA 01003-4525, USA; Department of Physics, Washington University, St. Louis, MO 63130, USA; Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA; Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA; Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA; School of Physics, University College Dublin, Belfield, Dublin 4, Ireland; Department of Physics, Purdue University, West Lafayette, IN 47907, USA; Department of Physics, University of Oxford, Oxford OX1 3RH, UK; Department of Physics, Grinnell College, Grinnell, IA 50112-1690, USA; Department of Astronomy and Astrophysics, Penn State University, University Park, PA 16802, USA; Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, USA; Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA; Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA; Physics Department, National University of Ireland, Galway, Ireland; Physics Department, McGill University, Montreal, QC, Canada H3A 2T8; Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA; Department of Physics and Astronomy, Van Allen Hall, Iowa City, IA 52242, USA; Department of Physical and Life Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland; Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland; Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064, USA; NASA/Goddard Space-Flight Center, Code 661, Greenbelt, MD 20771, USA
Astroparticle Physics 07/2006; 25:391-401. DOI:10.1016/j.astropartphys.2006.04.002 pp.391-401

ABSTRACT The first atmospheric Cherenkov telescope of VERITAS (the Very Energetic Radiation Imaging Telescope Array System) has been in operation since February 2005. We present here a technical description of the instrument and a summary of its performance. The calibration methods are described, along with the results of Monte Carlo simulations of the telescope and comparisons between real and simulated data. The analysis of TeV γ-ray observations of the Crab Nebula, including the reconstructed energy spectrum, is shown to give results consistent with earlier measurements. The telescope is operating as expected and has met or exceeded all design specifications.

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Keywords

Crab Nebula
 
design specifications
 
Energetic Radiation Imaging Telescope Array System
 
first atmospheric Cherenkov telescope
 
Monte Carlo simulations
 
real
 
technical description