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Table G.1.

Best-fit CXB, cluster, group, and filament model parameters.

Context Source Parameter No ROSAT (wstat) No ROSAT (cstat) Best fit (cstat)
Cosmic X-ray background Local hot bubble kT 0.09 (fixed) 0.09 (fixed) 0.108 ± 0.02
Abundance 1 (fixed) 1 (fixed) 1 (fixed)
Redshift 0 (fixed) 0 (fixed) 0 (fixed)
Norm ( 4 . 5 − 0.2 + 0.4 ) × 10 − 6 $ (4.5_{-0.2}^{+0.4})\times10^{-6} $ (4.5 ± 0.1)×10−6 (7.7 ± 0.3)×10−7
Galactic halo kT 0 . 22 − 0.01 + 0.03 $ 0.22_{-0.01}^{+0.03} $ 0 . 209 − 0.004 + 0.01 $ 0.209_{-0.004}^{+0.01} $ 0 . 156 − 0.08 + 0.002 $ 0.156^{+0.002}_{-0.08} $
Abundance 1 (fixed) 1 (fixed) 1 (fixed)
Redshift 0 (fixed) 0 (fixed) 0 (fixed)
Norm (1.1 ± 0.1)×10−6 (1.1 ± 0.04)×10−6 ( 2 . 2 − 0.05 + 3.2 ) × 10 − 6 $ (2.2^{+3.2}_{-0.05})\times10^{-6} $
Supervirial component kT 0 . 85 − 0.02 + 0.21 $ 0.85_{-0.02}^{+0.21} $ 0 . 79 − 0.02 + 0.06 $ 0.79_{-0.02}^{+0.06} $ 0.70 ± −0.01
Abundance 1 (fixed) 1 (fixed) 1 (fixed)
Redshift 0 (fixed) 0 (fixed) 0 (fixed)
Norm ( 2 . 5 − 0.4 + 0.2 ) × 10 − 7 $ (2.5_{-0.4}^{+0.2})\times10^{-7} $ ( 2 . 8 − 0.3 + 0.1 ) × 10 − 7 $ (2.8_{-0.3}^{+0.1})\times10^{-7} $ ( 3 . 6 − 0.1 + 2.6 ) × 10 − 7 $ (3.6^{+2.6}_{-0.1})\times10^{-7} $
Unresolved point sources Photon Index 1.41 (fixed) 1.41 (fixed) 1.41 (fixed)
Norm (7.6 ± 0.1)×10−7 (7.8 ± 0.1)×10−7 (8.1 ± 0.1)×10−07
fit (cstat) sources
Cluster Cluster kT 5.0 ± 0.6 5.1 ± +0.5 4 . 6 − 0.4 + 0.5 $ 4.6_{-0.4}^{+0.5} $
Abundance 0.3 (fixed) 0.3 (fixed) 0.3 (fixed)
Redshift 0.5458 (fixed) 0.5458 (fixed) 0.5458 (fixed)
Norm (7.3 ± 0.3)×10−06 (7.6 ± 0.2)×10−06 (7.83 ± 0.02)×10−06
Group Group kT 3.6 ± 0.6 4.3 ± 0.60 3.8 ± 0.6
Abundance 0.3 (fixed) 0.3 (fixed) 0.3 (fixed)
Redshift 0.5458 (fixed) 0.5458 (fixed) 0.5458 (fixed)
Norm (1.0 ± 0.07)×10−05 (1.09 ± 0.06)×10−05 ( 1 . 12 − 0.06 + 0.07 ) × 10 − 05 $ (1.12_{-0.06}^{+0.07})\times10^{-05} $
Filament Filament kT 2 . 7 − 0.3 + 0.4 $ 2.7_{-0.3}^{+0.4} $ 3.2 ± 0.4 3 . 1 − 0.3 + 0.6 $ 3.1_{-0.3}^{+0.6} $
Abundance 0.3 (fixed) 0.3 (fixed) 0.3 (fixed)
Redshift 0.5458 (fixed) 0.5458 (fixed) 0.5458 (fixed)
Norm (3.0 ± 0.2)×10−05 (2.9 ± 0.2)×10−05 (3.0 ± 0.2)×10−05

Notes. The best-fit CXB, cluster, group, and filament parameters from the joint fit using ROSAT, Chandra, and XMM-Newton data. The best fit was performed using cstat and includes all modelled Chandra and XMM-Newton instrumental backgrounds. Additional fits of the CXB, cluster, group, and filament parameters excluding the ROSAT data were performed, with (cstat) and without (wstat) the instrumental background modelling.

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