Powderday: Dust Radiative Transfer for Galaxy Simulations

Understand

We present Powderday, a flexible, fast, open-source dust radiative transfer package designed to interface with galaxy formation simulations.

• Powderday builds on FSPS population synthesis models, Hyperion dust radiative transfer, and employs yt to interface between different software packages.
• We include our stellar population synthesis modeling on the fly, which allows for significant run-time flexibility in the assumed stellar physics.
• We include a model for nebular line emission that can employ either precomputed Cloudy lookup tables (for efficiency), or direct photoionization calculations for all young stars (for flexibility).