A User's Guide to Extracting Cosmological Information from Line-Intensity Maps

Understand

Line-intensity mapping (LIM) provides a promising way to probe cosmology, reionization and galaxy evolution.

• However, its sensitivity to cosmology and astrophysics at the same time is also a nuisance.
• Here we develop a comprehensive framework for modelling the LIM power spectrum, which includes redshift space distortions and the Alcock-Paczynski effect.
• We then identify and isolate degeneracies with astrophysics so that they can be marginalized over.