Helena M. Richie

My research focuses on understanding the survival and evolution of dust and polycyclic aromatic hydrocarbons (PAHs) in the circumgalactic medium. I primarily work with high-resolution simulations (made using Cholla, a GPU-based hydrodynamics code) of dust evolution in multi-phase galactic outflows to study these questions. I’m also interested in modeling dust and PAH emission to better understand observations of dusty outflows, and I developed pah_spec, a Python tool for efficiently computing PAH emission spectra in arbitrary radiation fields.

Here, you can find a list of my publications and CV, along with some posts about my research projects. Movies of my simulations can be found here and on Vimeo.