Trident is an open-source Python package for analyzing astrophysical hydrodynamics simulations of the interstellar, circumgalactic, and intergalactic media. It can generate ionic abundances for all relevant ions to these studies based on collisional and photoionizational equilibrium. It also possesses infrastructure to create synthetic absorption-line spectra for making direct comparisons with observations.

For detailed installation directions and examples of how to use the Trident, please see the documentation.

• Trident documentation: http://trident.readthedocs.org

• The Trident project homepage: http://trident-project.org

• For questions, comments, and announcements, please join our low-volume mailing list: https://groups.google.com/forum/#!forum/trident-project-users