Ongoing

Jian Fu, Hong Guo, Ming Zhu, Huiyuan Wang

Based on the L-Galaxies prescription for HI gas, we will build mock catalogues for HI gas for 21cm surveys. We will use the ALFALFA100 survey results to constrain the models, and provide predictions for the CRAFT survey which will use the FAST telescope, and for future SKA 21cm surveys. Based on the ELUCID simulation, we can model the HI gas distribution and position (ra, dec) of the real Universe. We also plan to study the HI mass - halo mass relation, W50 function, and some other relations to constrain the models.