6 papers
Effects of Numerical Resolution on Simulated Cloud-Wind Interactions
Hannah Leary, Helena M. Richie, Evan Schneider
Mixing by hydrodynamical instabilities plays a key role in cloud-wind interactions, causing cloud destruction in the adiabatic limit and facilitating cloud survival with efficient…
PAH Emission Spectra and Band Ratios for Arbitrary Radiation Fields with the Single Photon Approximation
Helena M. Richie, Brandon S. Hensley
We present a new method for generating emission spectra from polycyclic aromatic hydrocarbons (PAHs) in arbitrary radiation fields. We utilize the single-photon limit for PAH heati…
Dust Evolution in Simulated Multiphase Galactic Outflows
Helena M. Richie, Evan E. Schneider
We present the first large-scale, high-resolution simulations of dusty, star formation feedback-driven galactic outflows. Using the Cholla hydrodynamics code, we investigate dust s…
Resolution Dependence of Cloud-Wind Simulations
Hannah J. Leary, Evan Schneider, Helena M. Richie
Using a set of wind-tunnel simulations, we investigate the effect that numerical resolution has on cloud evolution and acceleration. We also consider the role of wind speed in both…
JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium
Jérémy Chastenet, Ilse De Looze, Monica Relaño +37
We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters.…
Disk Instabilities Caused the 2018 Outburst of AG Draconis
Helena M. Richie, W. M. Wood-Vasey, Lou Coban
Symbiotic binary AG~Draconis (AG~Dra) has an well-established outburst behavior based on an extensive observational history. Usually, the system undergoes a 9--15~yr period of quie…