Cosmologies

The Aemulus simulations used to build the emulators were all run with different sets of cosmological parameters. As detailed in DeRose et al. (in prep.), these cosmologies were designed to span the space of Planck13 + WMAP9 + BAO + SNIa. The available parameters are \(\Omega_b, \Omega_m, w, n_s, H_0,\sigma_8, N_{\rm eff}\).

To access these cosmologies you can do

import aemulus_data as AD
import numpy as np
path = AD.path_to_building_box_cosmologies()
cosmologies = np.genfromtxt(path)

The figure below shows the locations of all parameters except \(N_{eff}\) which was not sampled by the Planck/WMAP chains.