Table 1: Physical cluster parameters. $M_{\rm 500}$ , $M_{\rm g, 500}$ and $f_{\rm g,500}$ are the total mass, gas mass and gas mass fraction respectively, within the radius R₅₀₀, inside which the mean mass density is 500 times the critical density at the cluster redshift. $T_{\rm X}$ is the spectroscopic temperature within [0.15-0.75]R₅₀₀ and $Y_{\rm X}= M_{\rm g, 500} T_{\rm X}$ . Values are given for a $\Lambda$ CDM cosmology with $\Omega _{\rm m}=0.3$ , $\Omega _{\Lambda }=0.7$ , H₀=70 km s^-1 Mpc^-1. Errors are $1~\sigma$ .
Cluster z $T_{\rm X}(\rm keV)$ $M_{500}~(10^{14}~M_{\odot})$ $M_{\rm g,500}~(10^{13}~ M_{\odot})$ $Y_{\rm X}~(10^{13}~ M_{\odot}~\rm keV)$ $f_{\rm g,500}$

A 1983 0.0442 $2.18\pm0.09$ $1.09_{\rm -0.29}^{+0.45}$ $0.64_{\rm - 0.08}^{+ 0.10}$ $1.39_{\rm -0.18}^{+0.23}$ $0.058_{\rm -0.017}^{+0.026}$

MKW9 0.0382 $2.43\pm0.24$ $0.88_{\rm -0.18}^{+0.23}$ $0.49_{\rm - 0.05}^{+ 0.06}$ $1.19_{\rm -0.17}^{+0.18}$ $0.055_{\rm -0.012}^{+0.016}$

A 2717 0.0498 $2.56\pm0.06$ $1.10_{\rm -0.11}^{+0.13}$ $1.02_{\rm - 0.05}^{+ 0.06}$ $2.60_{\rm -0.15}^{+0.16}$ $0.093_{\rm -0.011}^{+0.012}$

A 1991 0.0586 $2.71\pm0.07$ $1.20_{\rm -0.12}^{+0.13}$ $1.25_{\rm - 0.06}^{+ 0.06}$ $3.39_{\rm -0.19}^{+0.19}$ $0.104_{\rm -0.011}^{+0.012}$

A 2597 0.0852 $3.67\pm0.09$ $2.22_{\rm -0.21}^{+0.23}$ $2.51_{\rm - 0.08}^{+ 0.09}$ $9.21_{\rm -0.38}^{+0.39}$ $0.113_{\rm -0.011}^{+0.012}$

A 1068 0.1375 $4.67\pm0.11$ $3.87_{\rm -0.27}^{+0.29}$ $3.77_{\rm - 0.10}^{+ 0.10}$ $17.6_{\rm -0.62}^{+0.63}$ $0.097_{\rm -0.007}^{+0.008}$

A 1413 0.1430 $6.62\pm0.14$ $4.82_{\rm -0.40}^{+0.44}$ $7.55_{\rm - 0.27}^{+ 0.28}$ $50.0_{\rm -2.1}^{+2.1}$ $0.157_{\rm -0.014}^{+0.016}$

A 478 0.0881 $7.05\pm0.12$ $7.57_{\rm -1.02}^{+1.20}$ $9.33_{\rm - 0.43}^{+ 0.46}$ $65.8_{\rm -3.2}^{+3.4}$ $0.123_{\rm -0.017}^{+0.020}$

PKS 0745-191 0.1028 $7.97\pm0.28$ $7.27_{\rm -0.70}^{+0.80}$ $10.71_{\rm - 0.47}^{+ 0.50}$ $85.3_{\rm -4.8}^{+5.0}$ $0.147_{\rm -0.016}^{+0.018}$

A 2204 0.1523 $8.26\pm0.22$ $8.39_{\rm -0.77}^{+0.86}$ $10.55_{\rm - 0.39}^{+ 0.40}$ $87.2_{\rm -4.0}^{+4.1}$ $0.126_{\rm -0.012}^{+0.014}$

**Table 1:** Physical cluster parameters. $M_{\rm 500}$ , $M_{\rm g, 500}$ and $f_{\rm g,500}$ are the total mass, gas mass and gas mass fraction respectively, within the radius R₅₀₀, inside which the mean mass density is 500 times the critical density at the cluster redshift. $T_{\rm X}$ is the spectroscopic temperature within [0.15-0.75]R₅₀₀ and $Y_{\rm X}= M_{\rm g, 500} T_{\rm X}$ . Values are given for a $\Lambda$ CDM cosmology with $\Omega _{\rm m}=0.3$ , $\Omega _{\Lambda }=0.7$ , H₀=70 km s^-1 Mpc^-1. Errors are $1~\sigma$ .
Cluster	z	$T_{\rm X}(\rm keV)$	$M_{500}~(10^{14}~M_{\odot})$	$M_{\rm g,500}~(10^{13}~ M_{\odot})$	$Y_{\rm X}~(10^{13}~ M_{\odot}~\rm keV)$	$f_{\rm g,500}$
A 1983	0.0442	$2.18\pm0.09$	$1.09_{\rm -0.29}^{+0.45}$	$0.64_{\rm - 0.08}^{+ 0.10}$	$1.39_{\rm -0.18}^{+0.23}$	$0.058_{\rm -0.017}^{+0.026}$
MKW9	0.0382	$2.43\pm0.24$	$0.88_{\rm -0.18}^{+0.23}$	$0.49_{\rm - 0.05}^{+ 0.06}$	$1.19_{\rm -0.17}^{+0.18}$	$0.055_{\rm -0.012}^{+0.016}$
A 2717	0.0498	$2.56\pm0.06$	$1.10_{\rm -0.11}^{+0.13}$	$1.02_{\rm - 0.05}^{+ 0.06}$	$2.60_{\rm -0.15}^{+0.16}$	$0.093_{\rm -0.011}^{+0.012}$
A 1991	0.0586	$2.71\pm0.07$	$1.20_{\rm -0.12}^{+0.13}$	$1.25_{\rm - 0.06}^{+ 0.06}$	$3.39_{\rm -0.19}^{+0.19}$	$0.104_{\rm -0.011}^{+0.012}$
A 2597	0.0852	$3.67\pm0.09$	$2.22_{\rm -0.21}^{+0.23}$	$2.51_{\rm - 0.08}^{+ 0.09}$	$9.21_{\rm -0.38}^{+0.39}$	$0.113_{\rm -0.011}^{+0.012}$
A 1068	0.1375	$4.67\pm0.11$	$3.87_{\rm -0.27}^{+0.29}$	$3.77_{\rm - 0.10}^{+ 0.10}$	$17.6_{\rm -0.62}^{+0.63}$	$0.097_{\rm -0.007}^{+0.008}$
A 1413	0.1430	$6.62\pm0.14$	$4.82_{\rm -0.40}^{+0.44}$	$7.55_{\rm - 0.27}^{+ 0.28}$	$50.0_{\rm -2.1}^{+2.1}$	$0.157_{\rm -0.014}^{+0.016}$
A 478	0.0881	$7.05\pm0.12$	$7.57_{\rm -1.02}^{+1.20}$	$9.33_{\rm - 0.43}^{+ 0.46}$	$65.8_{\rm -3.2}^{+3.4}$	$0.123_{\rm -0.017}^{+0.020}$
PKS 0745-191	0.1028	$7.97\pm0.28$	$7.27_{\rm -0.70}^{+0.80}$	$10.71_{\rm - 0.47}^{+ 0.50}$	$85.3_{\rm -4.8}^{+5.0}$	$0.147_{\rm -0.016}^{+0.018}$
A 2204	0.1523	$8.26\pm0.22$	$8.39_{\rm -0.77}^{+0.86}$	$10.55_{\rm - 0.39}^{+ 0.40}$	$87.2_{\rm -4.0}^{+4.1}$	$0.126_{\rm -0.012}^{+0.014}$

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