Date: Wednesday 23-Apr-2025
Time: 11:30-12:30 pm
Location: PSC 1136
Speaker: Nico Garavito-Camargo (University of Arizona)
Title: Galaxies in disequilibrium and the nature of Dark Matter
Abstract: Galaxies in the local universe exhibit signatures of disequilibrium at various scales—for example, disk perturbations such as warps, phase-space spirals, or lopsided stellar distributions. At even larger scales, the distribution of satellite galaxies is highly asymmetric in systems like the Milky Way and Andromeda.
In this talk, I will discuss how the presence of disequilibrium encodes valuable information about the dynamical state of dark matter halos and, consequently, the nature of dark matter itself. I will show how Basis Function Expansions (BFE) are an ideal tool to characterize the interplay between dark matter and baryonic matter in cosmological simulations. As a result, BFE enable the quantification of the dynamical state of galaxies across different dark matter models, allowing for direct comparison with the signatures of disequilibrium observed in the local universe.
Guidelines and format for the CTC Lunch seminars.
Past CTC Lunch seminars.
For other questions, contact the CTC Lunch host: Ankita Bera
SPECIAL ACCOMMODATIONS:
Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.
