Astronomy & Astrophysics

Table 1: Physical cluster parameters. Masses are in units of $10^{14}~ M_\odot$ , and 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 $1\sigma$ errors.
Table 2: Results of power law fits to the $M_\delta$ -T and $R_{\delta }$ -T relation at various density contrasts $\delta$ . The data are fitted with a power law of the form $h(z) M_{\delta} = A_{\delta} \times (kT/5~\rm keV)^\alpha$ and $h(z) R_{\delta} = B_{\delta}\times (kT/5~\rm keV)^\beta$ , where kT is the overall spectroscopic temperature of the [0.1R₂₀₀- 0.5R₂₀₀] region. A $\Lambda$ CDM cosmology is assumed: $\Omega _{\rm m}=0.3$ , $\Omega _{\Lambda }=0.7$ , and H₀=70 km s^-1 Mpc^-1.
Table 3: Comparison of the present results with M-T relations from the literature. $\alpha$ is the logarithmic slope of the relation and A is the normalisation at $kT= 5~\rm keV$ , in units of $10^{14}~ M_\odot$ for H₀=70 km s^-1 Mpc^-1.