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EP: Fachverband Extraterrestrische Physik

EP 15: Astrophysics: Cosmology

EP 15.4: Talk

Friday, March 24, 2023, 14:45–15:00, HSZ/0004

Cross-Correlation of Artificial Diffuse Gamma-Ray Background Radiation and Corresponding Simulated Cosmic Shear — •Tristan Gradetzke and Stefan Fröse — TU Dortmund University

The cross-correlation of the diffuse gamma-ray background and cosmic-shear obtained from weak-lensing surveys yields the possibility to constrain dark-matter properties. This has been done already using Fermi-LAT data. Since Imaging Atmospheric Cherenkov Telescopes have a large effective area and are able to detect very-high energy gamma rays, the usage of their data for cross-correlation analyses is investigated. In this talk, a feasibility study, consisting of the cross-correlation of mock shear and diffuse gamma-ray background maps generated from a common mass distribution is discussed. We present the current state of the project.