Metal enrichment: The apex accretor perspective | Astronomy & Astrophysics (A&A)

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Table 1.

Redshift dependence of metal abundance and stellar mass fraction.

z range	M₅₀₀ range	R₅₀₀ range	γ^(a)	Ref.
	10¹⁴ M_⊙
< 1.2	1 < M < 10	R > 0.4	−0.26 ± 0.61	Et15
< 1.3	3 < M < 20	0.15 < R < 0.5	−0.41 ± 0.25	Mc16
< 0.8	2 < M < 20	0.5 < R < 1.0	−0.30 ± 0.91	Ma17
< 1.0	1 < M < 20	R < 1.0	−0.28 ± 0.31	Li20
< 1.7	1 < M < 20	0.3 < R < 1.0	$- 0 . 5_{- 0.3}^{+ 0.4}$ $-0.5^{+0.4}_{-0.3}$	Fl21

< 1.3	0.4 < M < 20	R < 1.0	+0.05 ± 0.27	Ch18

Notes.

^(a)

Slope defined from relation: X ∝ (1 + z)^γ, where X is $Z_{Fe}^{ICM}$ $Z^{\mathrm{ICM}}_{\mathrm{Fe}}$ for the first 4 entries and f_⋆ for the last.

References. (Et15) Ettori et al. (2015; Mc16) McDonald et al. (2016; Ma17) Mantz et al. (2017; Li20) Liu et al. (2020; Fl21) Flores et al. (2021; Ch18) Chiu et al. (2018).

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