The University of Utah Gamma Ray Group is funded by National Science Foundation Grant # PHY0555451


VERITAS at the "U"

VERITAS is a ground-based gamma-ray observatory with an array of four 12m Imaging Atmospheric Cherenkov Telescope (IACT) located at the Mt. Hopkins base camp site in southern Arizona. The array allows images of the same shower to be recorded from different view points. This leads to reconstruction of the primary particle with great precision and discrimination against cosmic rays. The gamma ray sky brings us information about the most violent phenomenon in the universe, from super-novae and their possible role in cosmic ray acceleration to the accretion of material onto super massive black holes in distant galaxies. It is also a window through which the most intriguing questions of astrophysics can be addressed like the nature of dark matter and dark energy in the universe.

Besides data analysis, we also contribute to the design and construction of the array at different levels:

  • Simulation
  • Optical calibration
  • Electronic calibration
  • Trigger electronics
  • Cabling

  • Information on these projects is found on the projects page.

    Other Gamma Ray Projects

    Star Base Utah

    A pair of Atmospheric Cherenkov Telescopes located at the Boneavile Sea Base in Grantsville Utah. They will be used to develop intensity interferometry in the gamma ray spectrum. Check out the site here

    Whipple 10 Meter

    Whipple 10m telescope is the pioneer of the Imaging Atmospheric Cherenkov technique and the predecessor of VERITAS. It is based at the Fred Lawrence Whipple Observatory in Southern Arizona.
    Here at U of U we are working on:

  • the search for signature of dark matter in the core of nearby galaxies
  • the diffuse emission from molecular clouds
  • survey of hotspots in the Tibet and Milagro data
  • GrISU: Atmospheric Cherenkov Simulation

    GrISU is a simulation package maintained by Charlie Duke from Grinnell College, Department of Physics and by Stephan LeBohec from University of Utah, Physics department. GrISU is developed for the simulation of Atmospheric Cherenkov detector arrays and is currently updated for data analysis by Stephan LeBohec and Pierre Colin here at the University of Utah Physics department.


    SGARFACE (Short GAmma Ray Front Air Cherenkov Experiment) is an experiment providing unprecedented sensitivity to gamma-ray-bursts of more than 100MeV with durations inferior to 100us. Such short gamma ray bursts have never been searched for with such a high sensitivity. A detection could betray the existence of primordial black holes. Contact Stephan LeBohec for more details.

    Contact Us: gammaray (at) | ©2007 University of Utah Gamma Ray Group