The large dataset used in the analysis is here.
The cooling-flow-model-largedata.zip file contains the following files compressed in it:
data-gasandcloud.h5
segmentation_67_h8_Mg-II-numdens_gt_1e-08.hdf5
tag-neighbours.npy
The Illustris TNG50-1 data specifically used in this repo is hosted here: http://www.tng-project.org/api/TNG50-1/snapshots/67/halos/8/cutout.hdf5?gas=all
For a more comprehensive guide on Illustris data and how to access it, please visit: https://www.tng-project.org/