A COSMOSIS wrapper for hi_class.

Installation

• Clone this repository

• Set up COSMOSIS:

  source cosmosis/config/setup-cosmosis

• Make the hi_class installation:

  cd hi_class_public

  make

Running

• See example ini files in the repo:

  [hi_class]

  file = INSTALLDIR/hi_class/hi_class_interface.py

  sBBN_file = INSTALLDIR/hi_class/hi_class_public/bbn/sBBN.dat

  expansion_model = lcdm

  gravity_model = propto_omega

• ...where INSTALLDIR refers to where you cloned the repo.

Plots

• The plot in plots/models_Dl_fisgma8.png shows a quick validation test, and should be compared to Figures 3 and 4 of Noller and Nicola 2018 (https://arxiv.org/abs/1811.12928)

Acknowledgements

Emilio Bellini and Dina Traykova for the original version of this wrapper and helpful comments!