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- Using the photons from the Crab Nebula seen by GLAST to calibrate MAGIC and the Imaging Air Cherenkov Telescopes, Bastieri et al, Astropart.Phys. 23 (2005) 572-576
- The GLAST Lunch presentation for April 21 was on the Bastieri et al. paper and on cross calibration issues in general. One possibility raised, but not explored particularly deeply, was using diffuse emission from the Milky Way for cross calibration. As a cross calibration source, it would have some real advantages, but only if the ACTs can detect extended emission. The HESS collaboration paper on their survey of the inner Galaxy, astro-ph/0510397, says that the Ring Analysis method employed for source detection discriminates against sources with a radius greater than 0.6 deg; an analysis specifically of diffuse emission in this survey is said to be in the works.
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