HAYASHI

(Halo-level AnalYsis of the Absorption Signal in HI)

(hayashi means forest in japanese)

Python library for computing the number of absorption features of the 21 cm forest in a semianalytic formalism. Includes the enhancement of the signal due to the presence of substructures within minihalos, as studied in arXiv:2209.01305. It supports non-standard cosmologies with impact in the large scale structure, such as warm dark matter and primordial black holes. See the papers arXiv:2209.01305, arXiv:2104.10695 for more details.

For comments, questions etc. you can contact me at pablo.villanueva.domingo@gmail.com

Impact parameter as a function of the optical depth for halos with and without subhalos