SMuK 2023 – scientific programme

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T: Fachverband Teilchenphysik

T 142: Neutrinos, Dark Matter XI

T 142.4: Talk

Thursday, March 23, 2023, 18:15–18:30, HSZ/0003

Constraining the dark matter distribution of galaxy clusters — •Lukas Nickel — TU Dortmund University

Dark matter remains one of the unsolved mysteries of modern astrophysics. Many phenomena can only be explained under the assumption of an additional matter component, yet - despite searches in all channels - no clear detection was made so far.

One way dark matter could be found, is to look for an excess in gamma-rays from regions with high concentrations of dark matter. Assuming that the unknown particle(s) decay/annihilate into standard-model particles, they would produce gamma-rays even without direct electromagnetic interaction.

To estimate the expected signal, the distribution of dark-matter in an astrophysical object needs to be determined first. This talk will focus on constraining the dark-matter content of nearby galaxy clusters using the CLUMPY software package, presenting current results and discussing implications for gamma-ray observations.