13–16 May 2025
Mitchell Institute, Texas A&M University
America/Chicago timezone

Dark matter signatures from the cosmic web

14 May 2025, 16:03
23m
Hawking Auditorium (Mitchell Institute, Texas A&M University)

Hawking Auditorium

Mitchell Institute, Texas A&M University

Speakers

Nassim Bozorgnia Nassim Bozorgnia (York University, University of Alberta)

Description

Cosmic filaments form the structure of the cosmic web, with dark matter making up the majority of their mass. If GeV-scale dark matter particles in filaments decay into electron-positron pairs, they could generate radio waves through synchrotron radiation. A realistic description of the expected dark matter decay signals from cosmic filaments requires a detailed characterization of the dark matter distribution within them. I will present the dark matter density profiles in filaments extracted from state-of-the-art cosmological simulations and discuss their implications for indirect detection signals from dark matter decay. In particular, I will focus on the decay of dark matter into electron-positron pairs and discuss the resulting constraints on the dark matter decay lifetime.

Presentation materials