Search for Cygnus Arm Diffuse TeV Gamma Ray Emission with the Whipple 10m Telescope

Abstract

The Whipple 10 meter atmospheric Cherenkov telescope has made observations of the region known as the Cygnus arm. This region has been recently reported by the Milagro experiment to contain a diffuse TeV gamma-ray source centered at RA=308 and Dec=42. We report upper limits (using the Whipple 10 m telescope) obtained during the Fall 2004 observing season centered on RA=310 and Dec=42.65.