SYSTEMATIC EFFECTS IN EXTRACTING A 'GAMMA-RAY HAZE' FROM SPATIAL TEMPLATES

@article{Linden2010SYSTEMATICEI,
  title={SYSTEMATIC EFFECTS IN EXTRACTING A 'GAMMA-RAY HAZE' FROM SPATIAL TEMPLATES},
  author={Tim Linden and Stefano Profumo},
  journal={The Astrophysical Journal},
  year={2010},
  volume={714}
}
Recent claims of a gamma-ray excess in the diffuse galactic emission detected by the Fermi Large Area Telescope made use of spatial templates from the interstellar medium (ISM) column density and the 408 MHz sky as proxies for neutral pion and inverse Compton (IC) gamma-ray emission, respectively. We identify significant systematic effects in this procedure that can artificially induce an additional diffuse component with a morphology strikingly similar to the claimed gamma-ray haze. To… Expand

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