The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the YSZ – M500 relation

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Table 1:

$h(z)^{-2/3}Y_{\rm sph}(R_{500}) - h(z)^{-7/3}L_{\rm X}$ and updated $h(z)^{-7/3}L_{\rm X}- M_{\rm 500}$ relations (see text).
Relation	$\log_{10} C$	$\alpha$	$\sigma_{\rm log,i}$
$Y_{\rm sph}(R_{500}) - L_{\rm X}- {\rm MB}$	$-4.940 \pm 0.036$	$1.07 \pm 0.08$	$0.190\pm0.025$
$L_{\rm X}- M_{\rm 500}- {\rm MB}$	$0.193 \pm 0.034$	$1.76 \pm 0.13$	$0.199\pm0.035$
$Y_{\rm sph}(R_{500}) - L_{\rm X}$	$-5.047 \pm 0.037$	$1.14 \pm 0.08$	$0.184\pm0.024$
$L_{\rm X}- M_{\rm 500}$	$0.274 \pm 0.032$	$1.64 \pm 0.12$	$0.183\pm0.032$

Notes. $L_{\rm X}$ is the $[0.1{-}2.4]~\rm keV$ luminosity within R₅₀₀. MB: relations corrected for Malmquist bias. For each observable set, (B,A), we fitted a power law relation of the form $B = C(A/A_0)^\alpha$ , with A₀ = 10⁴⁴ h₇₀^-2 ergs/s and 3 $\times$ $10^{14}~{h_{70}^{-1}}~{M_{\odot}}$ for $L_{\rm X}$ and $M_{\rm 500}$ , respectively. $\sigma_{\rm log,i}$ : intrinsic scatter about the best fitting relation in the $\log{-}\log$ plane.

Source LaTeX | All tables | In the text

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