Speaker
Chi （弛） Zhang （张）
(Purple Mountain Observatory)
Description
We present, for the first time, the gas and HI distributions in and around haloes in the TNG universe for three alternative dark-matter models: SIDM, velocity-dependent SIDM, and WDM. We show how these models affect HI and the resulting Lyman-$\alpha$ spectra. We show how gas and HI density profiles change with halo mass and redshift with alternative DM. Finally, we compute the galaxy–Lyman-$\alpha$ cross-correlation function to test whether observations can distinguish these models.
Primary author
Chi （弛） Zhang （张）
(Purple Mountain Observatory)
