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Gamma-ray source stacking analysis at low galactic latitudes |
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| Authors: | Analía N Cillis Olaf Reimer Diego F Torres |
| Institution: | 1. Goddard Space Flight Center/NASA, Greenbelt, 20771, MD, USA 2. W.W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA, 94305-4085, USA 3. Institució de Recerca i Estudis Avan?ats (ICREA) & Institut de Ciències de l’Espai (IEEC-CSIC), Facultat de Ciencies, Universitat Autònoma de Barcelona, Torre C5 Parell, 2a planta, 08193, Barcelona, Spain |
| Abstract: | We studied the problematic of uncertainties in the diffuse gamma radiation apparent in stacking analysis of EGRET data at low Galactic latitudes. Subsequently, we co-added maps of counts, exposure and diffuse background, and residuals, in varying numbers for different sub-categories of putatively and known source populations (like PSRs). Finally we tested for gamma-ray excess emission in those maps and attempt to quantify the systematic biases in such approach. Such kind of an analysis will help the classification processes of sources and source populations in the GLAST era. |
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