This directory stores mass assembly history (MAH) data for halos, subhalos, and orphans
in the DR1 UniverseMachine model run on the Bolshoi-Planck simulation.

In Alarcon+25 (https://ui.adsabs.harvard.edu/abs/2025arXiv251027604A/abstract),
the diffmah model was updated to include the effect of the t_peak parameter.
These diffmah fits pertain to this updated version.

This dataset only includes halos with Mpeak(z=0)>10^10.5 Msun.

The file `bpl_mpeak_histories.hdf5` stores Mpeak(t) in units of Msun (not Msun/h)
The file `diffmah_fits.hdf5` stores the best-fitting diffmah parameters
The notebook `examin_diffmah_fits.ipynb` shows how to read the data and make an example plot