Very proud to be a part of this excellent review on "The Spectral Energy Distributions of Galaxies", part of the Encyclopedia of Astrophysics.

Kartheik has made some absolutely stunning figures, example below. Go check it out!

arxiv.org/abs/2502.17680

Come join us in Bristol in May for our meeting on Simulation Based Inference for Galaxy Evolution!

We've got some very exciting speakers lined up (stay tuned), abstract submission deadline February 1st

sbi-galev.github.io/2025/

#astronomy #astro #extragalactic #astrocode

Beatrice Tinsley's Ph.D thesis, 1967. Has anything changed? :)

(except maybe the uncertainties on primordial Helium abundance...)

#astronomy #extragalactic #histsci

We also explore the feature importance, and find that it is the colour distributions that drive the tight constraints on omega_m and sigma_8

We then perform Simulation Based Inference (SBI) on the luminosity functions and colour distributions, and find interesting results for sigma-8, describing the clustering of matter - this is despite the lack of any spatial information in these distributions

We believe (!) that this dataset represents the largest catalogue of synthetic photometry based on hydrodynamic galaxy formation simulations produced to date.

We first forward model the UV-NIR rest- and observer-frame photometry from over 200 million sources in the CAMELS simulations. These catalogues are now publicly available:

camels.readthedocs.io/en/latest/ph...