core_catalog_mevolved

Appends m_evolved column to given core catalog and saves output core catalog in HDF5 format. m_evolved is initialized as 0 and tracks halo mass loss after core infall according to given subhalo mass loss model. Currently configured for AlphaQ core catalog.

Usage

Generate core catalog with m_evolved

1. Change cosmology parameters, cc_data_dir, and cc_output_dir in subhalo_mass_loss_model.py
2. Create empty directory cc_output_dir

python cc_generate.py

Plot mass functions

See Notebooks/ for useful Jupyter notebooks. Helper functions for plotting subhalo, core evolved mass, and core unevolved mass functions are provided in plot_subhalo_mass_fn.py.

Subhalo mass loss model

Currently using Jiang and van den Bosch 2016 model. A different model can be specifed by modifying subhalo_mass_loss_model.py.

Dependencies

• dtk: cosmo.py (included with repo)
• Astropy
• H5Py
• GenericIO
• itk
• tqdm (for progress bar)
• Numpy
• Matplotlib