Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3704w&link_type=abstract
American Astronomical Society, HEAD meeting #11, #37.04; Bulletin of the American Astronomical Society, Vol. 41, p.717
Astronomy and Astrophysics
Astronomy
Scientific paper
One of the principal drivers for the VERITAS science program has been the possibility of detecting the signature of particle dark matter (i.e. neutralino) self-annihilation in VHE (>100 GeV) gamma rays. Due to their proximity and large inferred dark matter concentration, ideal targets for such observations are objects such as dwarf galaxies, globular clusters, and local group galaxies. Specifically, VERITAS has focused its observations on dwarf galaxies due to their high mass to light ratios. Here we present the results of the VERITAS observations of the dwarf galaxies Ursa Minor, Draco, Willman I, and Bootes I under the auspices of indirect dark matter detection. While no significant TeV signal has been detected, the observations can be used to place limits on the thermally averaged self-annihilation cross section of the neutralino in various models of supersymmetry. We present those limits as well as the estimated limits for a similarly structured observational program with the next generation IACT array, AGIS.
VERITAS Collaboration
Wagner Robert G.
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