This page holds a summary post for each paper I’ve written; in this feed, you can find a brief description and key figure. See the posts themselves for more details!
In this paper, I search Milky Way–like galaxies in IllustrisTNG50 for mergers that resemble the GSE, our most recent major merger, and find them a third of the time. I allow for the GSE to be comprised of two mergers, rather than necessarily being a single merger; these pairs account for approimately a third of the GSEs. It's hard to tell single- from two-merger GSEs apart, except that the single mergers are typically accreted more recently.
In this paper, I establish a procedure to infer internal and orbital properties of Milky Way satellites using the SatGen semi-analytic model. In particular, I provide values for $v_\mathrm{max}$ and $r_\mathrm{max}$ for the classical satellites, varying over astrophysical uncertainties such as the stellar mass–halo mass relation and baryonic feedback perscriptions. I also show inferred values for the central densities, pericenters, probability of group accretion, and more. The method is easily extensible to other properties, and my code is publicly available.
