Open Access

Table 5.

Fit results for cross-correlation, auto-correlation of de Sainte Agathe et al. (2019), and combined fit.

Parameter Lyα–quasar Lyα–Lyα Combined
α 1.076 ± 0.042 1.033 ± 0.034 1.049 ± 0.026
α 0.923 ± 0.046 0.953 ± 0.048 0.942 ± 0.031
βα 2.28 ± 0.31 1.93 ± 0.10 1.99 ± 0.10
bηα −0.267 ± 0.014 −0.211 ± 0.004 −0.214 ± 0.004
βq 0.257 0.209 ± 0.006
σv [h−1 Mpc] 7.60 ± 0.61 7.05 ± 0.36
Δr [h−1 Mpc] −0.22 ± 0.32 −0.17 ± 0.28
0.276 ± 0.158 0.477 ± 0.112
Arel1 −13.5 ± 5.8 −13.6 ± 4.7
βHCD 0.500 ± 0.200 1.031 ± 0.153 0.972 ± 0.150
−0.000 ± 0.004 −0.000 ± 0.004
−0.051 ± 0.004 −0.052 ± 0.004
−0.072 ± 0.005 −0.073 ± 0.005
103bSiII(119.0) −5.7 ± 2.4 −5.0 ± 1.0 −4.3 ± 0.9
103bSiII(119.3) −1.5 ± 2.4 −4.6 ± 1.0 −3.4 ± 0.9
103bSiIII(120.7) −11.7 ± 2.4 −8.0 ± 1.0 −8.3 ± 0.9
103bSiII(126.0) −2.2 ± 1.7 −2.2 ± 1.3 −1.9 ± 0.9
103bCIV(154.9) −16.3 ± 8.8 −16.8 ± 9.0

3231.61 3258.91 6499.31
Nbin 3180 3180 6360
Nparam 14 12 18
Probability 0.20 0.13 0.08
zeff 2.35 2.34 2.34
ρ(α, α) −0.44 −0.34 −0.40
χ2(α = α = 1) 3235.79 3260.54 6504.30

Notes. The auto-correlation fit uses the combination Lyα(Lyα) × Lyα(Lyα) + Lyα(Lyα) × Lyα(Lyβ) described in de Sainte Agathe et al. (2019). The fits are over the range 10 <  r <  180 h−1 Mpc. Errors on BAO parameters correspond to CL = 68.27%, while the other parameters have errors corresponding to Δχ2 = 1. The parameter βq is fixed for the cross-correlation fit. The bottom section of the table gives the minimum χ2, the number of data bins (Nbin) and free parameters (Nparam) in the fit, the probability, the effective redshift, the correlation coefficient (ρ) for the BAO parameters, and the χ2 for the fit with the fixed fiducial BAO peak position.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.