Anisotropies in the diffuse gamma-ray background measured by the Fermi-LAT
Jennifer M. Siegal-Gaskins (for the Fermi-LAT Collaboration and, Eiichiro Komatsu)
TL;DR
This paper analyzes small-scale anisotropies in the diffuse gamma-ray background measured by Fermi-LAT to identify contributions from unresolved sources like dark matter and astrophysical objects.
Contribution
It provides preliminary results on anisotropy analysis using the Fermi-LAT data, focusing on small angular scales to distinguish source contributions.
Findings
Preliminary anisotropy measurements of the diffuse gamma-ray background.
Insights into potential unresolved source contributions.
Application of anisotropy metrics to Fermi-LAT data.
Abstract
The contribution of unresolved sources to the diffuse gamma-ray background could produce anisotropies in this emission on small angular scales. Recent studies have considered the angular power spectrum and other anisotropy metrics as tools for identifying contributions to diffuse emission from unresolved source classes, such as extragalactic and Galactic dark matter as well as various astrophysical gamma-ray source populations. We present preliminary results of an anisotropy analysis of the diffuse emission measured by the Fermi-LAT.
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Taxonomy
TopicsNuclear Physics and Applications · Radiation Detection and Scintillator Technologies · Advanced X-ray and CT Imaging