Fig. 16.


Filament properties derived from GALICS mocks. From left to right: as a function of the overdensity (δ), the filament total and diffuse Lyα flux in units of 10−20 erg s−1 cm−2, the area (arcsec2) and surface brightness (10−20 erg s−1 cm−2 arcsec−2) of the diffuse component. Color coding correspond to the number of points in the two-dimensional histogram bins with increasing values from blue to yellow. The group IDs for the corresponding observed filaments properties are shown as black labels. The red points display the two show cases presented in Fig. 15 and Table 3.

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