12–23 Jul 2021
Online
Europe/Berlin timezone

Shedding light on low-mass subhalo survival with numerical simulations

20 Jul 2021, 12:00
1h 30m
07

07

Talk DM | Dark Matter Discussion

Speaker

Alejandra Aguirre-Santaella (IFT UAM-CSIC)

Description

In this work, we carry out a suite of specially-designed numerical simulations that employ a supercluster computational power to shed further light on dark matter (DM) subhalo survival at mass scales relevant for gamma-ray DM searches, a topic subject to intense debate nowadays. Specifically, we have employed a GPU N-body code to study the evolution of low-mass subhalos inside a Milky Way-like halo with unprecedented accuracy, paying particular attention to subhalos at the solar galactocentric radius. We have simulated subhalos with varying mass, concentration, and orbital properties, and considered the effect of the gravitational potential of the Milky-Way galaxy itself. These results provide detailed predictions that will aid current and future quests for the nature of dark matter.

Keywords

cosmological simulations, indirect detection of dark matter, subhalos

Subcategory Theoretical Results

Primary authors

Presentation materials