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Table 1.
Definition of the five different gas phases studied here (see Sect. 2.5 and Fig. 2).
| Density [cm−3] | Temperature [K] | Comments | |
|---|---|---|---|
| Diffuse IGM | nH ≤ 10−4 | T ≤ 105 | Gas in the lowest-density regions of the cosmic web. |
| WHIM | nH ≤ 10−4 | 105 < T ≤ 107 | Gas that has been accreted onto cosmic structures and heated by shocks. |
| WCGM | nH > 10−4 | 105 < T ≤ 107 | In the surroundings of galaxies, sensitive to galactic physics. |
| Halo gas | nH > 10−4 | T ≤ 105 | In the interstellar medium of galaxies, located inside or near them. |
| Hot gas | no cut | T > 107 | Shock-heated gas located in the denser regions of the cosmic web. |
Notes. Further details can be found in Martizzi et al. (2019).
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