Bars are the most ubiquitous non-axisymmetric structure observed in the local universe, observed in roughly two-thirds of local galaxies. My thesis focused on numerical simulations and analytic calculations to examine detailed physical processes related to the formation and evolution of bars.
One result to come of this work is the discovery of a trapped component in the dark matter halo that mimics the stellar bar, which we refer to as the shadow bar. Click on the image below for a more comprehensive look at the shadow bar work, or read the MNRAS paper.
The shadow bar has consequences for the structure of the dark matter halo at the solar circle.
The combination of the stellar and shadow bar drives non-axisymmetric structure in the dark matter halo--which has consequences for direct detection experiments on Earth. Click on the image below for a more comprehensive look at the implications for direct detection experiments, or read the PhysRevD paper.