Modelling the cosmic neutral hydrogen from DLAs and 21-cm observations

@article{Padmanabhan2016ModellingTC,
  title={Modelling the cosmic neutral hydrogen from DLAs and 21-cm observations},
  author={Hamsa Padmanabhan and Tirthankar Roy Choudhury and Alexandre R{\'e}fr{\'e}gier},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={458},
  pages={781-788}
}
We review the analytical prescriptions in the literature to model the 21-cm (emission line surveys/intensity mapping experiments) and Damped Lyman-Alpha (DLA) observations of neutral hydrogen (HI) in the post-reionization universe. While these two sets of prescriptions have typically been applied separately for the two probes, we attempt to connect these approaches to explore the consequences for the distribution and evolution of HI across redshifts. We find that a physically motivated, 21-cm… Expand

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