The Cloudy-Maraston grids
Stellar population synthesis (SPS) models serve as indispensable tools for unraveling the intricate narrative of galaxy evolution, and
allow physical parameters, such as stellar mass and stellar formation rate, to be inferred from spectrophotometric data through
fitting. In Newman et al. (2025), we use the photoionization code Cloudy to add nebular emission to the
two of these SPS models: the M13 and the M24 models. Compared to the SPS models by
Maraston (2005), the
onset age of the TP-AGB phase in the newer M13 model is adjusted
to match new calibrations using Magellanic Cloud clusters. The M24 models are updates to the M13 models with new stellar tracks that
account for stellar rotation.
These models that we present in Newman et al. (2025) can be downloaded below. Please cite Newman et al. 2025 if you use these models in your work.
Download the grids
More grids that were used in this work, such as those for other SPS models that we used for comparison, can also be found there but
extra grids can be found on the Synthesizer
Dropbox.
How to use the grids
We used synthesizer to run the stellar models through Cloudy and obtain the nebular emission.
We also recommend using synthesizer to generate synthetic astrophysical observables from these model grids
and the documentation explaining how to do so can be found here.
A set of Jupyter notebooks have been created to enable others to easily reproduce the plots in this paper.