The DESI One-Percent Survey: Modelling the clustering and halo occupation of all four DESI tracers with UCHUU

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Table 2.

Best-fit modified SHAM parameters for the ELGs for each redshift bin and for the entire mock.

z_min	z_max	N_eff	V_eff	$n_{g}^{ELG}$ $n_{\mathrm {g}}^{\mathrm {ELG}}$	χ²/d.o.f.	V_mean	f_sat	$f_{sat}^{Uchuu}$ $f_{\mathrm {sat}}^{\mathrm {Uchuu}}$	b^ELG	b^Uchuu
0.88	1.34	200 997	0.259	0.776×10⁻³	2.33	156.5 ± 4.2	0.131 ± 0.012	0.131	1.34 ± 0.03	1.34 ± 0.01
0.88	1.00	66 699	0.059	1.13×10⁻³	4.88	133.2 ± 6.1	0.179 ± 0.029	–	1.35 ± 0.04	1.27 ± 0.01
1.00	1.16	69 110	0.089	0.78×10⁻³	3.62	156.5 ± 6.9	0.131 ± 0.023	–	1.25 ± 0.06	1.35 ± 0.01
1.16	1.34	65 187	0.111	0.60×10⁻³	2.04	127.8 ± 5.4	0.246 ± 0.034	–	1.43 ± 0.01	1.42 ± 0.01

Notes. The first two columns show the minimum and maximum redshift used to define the different ELG samples. The following columns give, for each redshift bin, the number of galaxies, the effective volume (in h⁻³ Gpc³) and the galaxy number density (in h³ Mpc⁻³). The χ²/d.o.f. is obtained by computing the monopole of the two-point correlation functions of the Uchuu ELG mocks for the best-fit model parameters and comparing to the observed monopole of the DESI One-Percent sample two-point correlation function, in the separation range ∼5 h⁻¹ Mpc to ∼30 h⁻¹ Mpc. This was the same method used to obtain the best-fit V_mean (in km s⁻¹), and f_sat parameters used to generate our UCHUU One-Percent mock lightcones. The last two columns show the bias calculated from the data and the mocks respectively (b^ELG and b^Uchuu). The errors reported for the data are statistical only from the fitting code, the errors reported for the mocks are the standard error in the mean of the 102 independent footprint mocks.

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