Gamma-ray Astronomy with Muons: Sensitivity of IceCube to PeVatrons in the Southern Sky

Details Gamma-ray Astronomy with Muons: Sensitivity of IceCube to PeVatrons in the Southern Sky Gamma-ray Astronomy with Muons: Sensitivity of IceCube to PeVatrons in the Southern Sky

2009-09-21

arxiv.org/abs/0909.3836v1

Phys.Rev.D80:083009,2009

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

27 pages, 13 figures

Scientific paper

10.1103/PhysRevD.80.083009

Northern hemisphere TeV gamma-ray observatories such as Milagro and Tibet AS$\gamma$ have demonstrated the importance of all-sky instruments by discovering previously unidentified sources that may be the PeVatrons producing cosmic rays up to the "knee" in the cosmic ray spectrum. We evaluate the potential of IceCube to identify similar sources in the southern sky by detailing an analytic approach to determine fluxes of muons from TeV gamma-ray showers. We apply this approach to known gamma-ray sources such as supernova remnants. We find that, similar to Milagro, detection is possible in 10 years for point-like PeVatrons with fluxes stronger than several 10^{-11} particles TeV^{-1} cm^{-2} s^{-1}.

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