Improved Method for Low Energy and large Zenith Angle Observations using Imaging Atmospheric Telescopes

摘要

A technique to improve the efficiency of low energy or large zenith angle observations with a single imagingatmospheric Cerenkov telescope (IACT) is presented here. The method was developed using simulations and archival CrabNebula data taken with the Whipple 10 m telescope. Improvements in significance of over 30% have been achieved and themethod is fully applicable to a stereoscopic array. This technique could prove to be a particularly useful tool in the currenttrend towards lowering the effective observable energy regime of ground based telescopes to coincide with the early results ofthe GLAST satellite over the next few years.