ASCL.net

Astrophysics Source Code Library

Making codes discoverable since 1999

ASCL Code Record

[ascl:2407.006] provabgs: SED modeling tools for PROVABGS

provabgs infers full posterior distributions of galaxy properties for galaxies in the DESI Bright Galaxy Survey using state-of-the-art Bayesian spectral energy distribution (SED) modeling of DESI spectroscopy and photometry. provabgs includes a state-of-the-art stellar population synthesis (SPS) model based on non-parametric prescription for star formation history, a metallicity history that varies over the age of the galaxy, and a flexible dust prescription. It has a neural network emulator for the SPS model that enables accelerated inference. Full posteriors of the 12 SPS parameters can be derived in ~10 minutes. The emulator is currently designed for galaxies from 0 < z < 0.6. provabgs also includes a Bayesian inference pipeline that is based on zeus (ascl:2008.010).

Code site:
https://github.com/changhoonhahn/provabgs
Described in:
https://ui.adsabs.harvard.edu/abs/2023ApJ...945...16H
Bibcode:
2024ascl.soft07006H

Views: 439

ascl:2407.006
Add this shield to your page
Copy the above HTML to add this shield to your code's website.