Understanding EAZY-py

EAZY, the photometric redshift code developed by Gabe Brammer, is very commonly used in the extragalactic community for its speed and reliability. I’ve used it for years as a member of the JADES collaboration, performing photometric redshift analysis on the catalog sources and finding ultra-high-redshift galaxies. Over the years, I’ve talked with many, many folks about the use cases for EAZY, and I decided to collect my thoughts into a website that guides folks through how to run EAZY, update templates and filters, and how to understand the output.

You can read my Unofficial EAZY-py guide here.

I’m sure there are probably errors and parts that are still confusing. Please let me know if you have any questions!