This session will recap on some cosmology from Lesson 1, and go into more detail about the theory of reionization -- the role of Hydrogen in the Universe, the spin-flip (21cm) transition, sources of (re)ionization, and the history of structure formation.
To bring these ideas to life, we will concurrently introduce and demonstrate the state-of-the-art simulator 21cmFAST to produce views into the Universe at different stages of its formation.
The presentation slides can be found here.
During the presentation, we will be creating a Jupyter notebook to generate and view the outputs of 21cmFAST. A template copy of this notebook is in this repo here. A solutions notebook is also available, but we strongly recommend you use that only after the tutorial for reference.
The notebook should use the 21cmfast conda environment that should be installed
already on your NRAO account. If you plan to run the lesson locally, do
conda env create -f Precamp/21cmfast_env.yml
to install the 21cmfast environment first.