Modelling the selection of galaxy groups with end-to-end simulations

Open Access

Table 2.

Priors and posteriors of the parameters describing the X-GAP selection function model in Eq. (15).

Parameter	Prior	Posterior F_X,500c	Posterior F $_{X, 6^{'}}$ ${}_{\mathrm {X,6^{\prime}}}$
α_Fx	$U$ ${\cal {{U}}}$ (0, 10)	4.78 ± 0.08	4.76 ± 0.08
F_X,0	$U$ ${\cal {{U}}}$ (−14, −5)	−11.03 ± 0.14	−10.84 ± 0.15
α_v	$U$ ${\cal {{U}}}$ (0, 5)	0.83 ± 0.19	1.01 ± 0.21
α_σz	$U$ ${\cal {{U}}}$ (0, 5)	1.73 ± 0.12	2.19 ± 0.12

Notes. Posteriors are reported for both cases of X-ray flux measured within R_500c or in an aperture of six arcminutes. The symbol $U (M, N)$ ${\cal {{U}}}(M,N)$ denotes a uniform prior between the values M and N.

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