Revealing the Nature of Dark Matter

1. The distribution of gas elements at z=20 for the 17 cases with different density and streaming velocity.

2. The time evolution of gas clumping from z=100 to 19.

3. The time evolution of the 21cm spin temperature from our main simulation.

4. The time evolution of the hydrogen gas temperature from our main simulation.

5. The distribution of dark matter particles in CDM model.

6. The distribution of hydrogen gas in CDM model.

7. Nonlinear formation of structure in CDM model: Movie.

8. Nonlinear formation of structure in WDM model: Movie.

9. Comparison of structure formation in CDM/WDM model: Movie.