Munich Dark Matter Meeting: Julian Sommer (LMU):

Tuesday 29 Oct 2024, 12:30 → 13:30 Europe/Berlin

A.2.25/27 - Atlas (New)

Can we observe dark matter in galaxy clusters?

ABSTRACT: Axion quark nuggets (AQNs) are a theoretical dark matter candidate that could explain both the matter-antimatter asymmetry in the universe and the observed visible-to-dark-matter ratio. In this DM meeting, I discuss AQN-baryonic matter interactions in galaxy clusters, using the constrained cosmological Simulation of the LOcal Web (SLOW) to model their thermal and non-thermal emissions. Our analysis of 161 simulated galaxy clusters reveals that AQN emissions can significantly contribute to intracluster medium radiation in certain frequency bands, particularly when cosmic ray synchrotron emission is low. I will discuss the most promising candidates for detecting AQN signatures, including the Fornax and Virgo clusters, and outline future efforts to refine these models for better precision.

 

For more info on this seminar series, including zoom link, please see

https://wwwmpa.mpa-garching.mpg.de/darkmatter/