This dataset is the fourth of five sets of simulation snapshots from a high-resolution cosmological zoom-in simulation of a Milky-Way like galaxy. The simulations were performed with the N-Body/SPH code GASOLINE. Each tarball contains the simulation snapshot for a given time, halo finder outputs, as well as auxiliary files storing additional per-particle data.
Publications using this data can be found here:
https://ui.adsabs.harvard.edu/public-libraries/SAH2SMjMQc6eidYW0EFeOQ
The file format for the snapshots is described here:
https://github.com/N-BodyShop/changa/wiki/File-Formats
The halo finder outputs are generated by the Amiga Halo Finder, and the documentation for this can be found here:
http://popia.ft.uam.es/AHF/Documentation.html