The ${\mathrm{Y}}_{\mathrm{SZ},\mathrm{Planck}}-{\mathrm{Y}}_{\mathrm{SZ},\mathrm{XMM}}$ scaling relation and its difference between cool-core and non-cool-core clusters

Abstract

We construct a sample of 70 clusters using data from XMM-Newton and Planck to investigate the $Y_{\mathrm{SZ},\mathrm{Planck}}-Y_{\mathrm{SZ},\mathrm{XMM}}$ scaling relation and the cool-core influences on the relation. $Y_{\mathrm{SZ},\mathrm{XMM}}$ is calculated by accurate de-projected temperature and electron number density profiles derived from XMM-Newton. $Y_{\mathrm{SZ},\mathrm{Planck}}$ is the latest Planck data restricted to our precise X-ray size ${\theta }_{500}$. To study the cool-core influences on$Y_{\mathrm{SZ},\mathrm{Planck}}-Y_{\mathrm{SZ},\mathrm{XMM}}$ scaling relation, we apply two criteria, limits of central cooling time and classic mass deposition rate, to distinguish cool-core clusters (CCCs) from non-cool-core clusters (NCCCs). We also use $Y_{\mathrm{SZ},\mathrm{Planck}}$ from other papers, which are derived from different methods, to confirm our results. The intercept and slope of the$Y_{\mathrm{SZ},\mathrm{Planck}}-Y_{\mathrm{SZ},\mathrm{XMM}}$ scaling relation are $A=-0.86\pm 0.30$, $B=0.83\pm 0.06$. The intrinsic scatter is ${\sigma }_{\mathrm{ins}}=0.14\pm 0.03$. The ratio of \mbox{$Y_{\mathrm{SZ},\mathrm{Planck}}/Y_{\mathrm{SZ},\mathrm{XMM}}$} is $1.03\pm 0.05$, which is perfectly agreed with unity. Discrepancies of $Y_{\mathrm{SZ},\mathrm{Planck}}-Y_{\mathrm{SZ},\mathrm{XMM}}$ scaling relation between CCCs and NCCCs are found in observation. They are independent of cool-core classification criteria and $Y_{\mathrm{SZ},\mathrm{Planck}}$ calculation methods, although discrepancies are more significant under the classification criteria of classic mass deposition rate. The intrinsic scatter of CCCs (0.04) is quite small compared to that of NCCCs (0.27). The ratio of $Y_{\mathrm{SZ},\mathrm{Planck}}/Y_{\mathrm{SZ},\mathrm{XMM}}$ for CCCs is $0.89\pm 0.05$, suggesting that CCCs' $Y_{\mathrm{SZ},\mathrm{XMM}}$ may overestimate SZ signal. By contrast, the ratio of $Y_{\mathrm{SZ},\mathrm{Planck}}/Y_{\mathrm{SZ},\mathrm{XMM}}$ for NCCCs is $1.14\pm 0.12$, which indicates that NCCCs' $Y_{\mathrm{SZ},\mathrm{XMM}}$ may underestimate SZ signal.

16 pages, 5 figures, accepted by RAA

References in corpus (12)

• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• Statistics of X-ray observables for the cooling-core and non-cooling core galaxy clusters
• The relation between velocity dispersion and mass in simulated clusters of galaxies: dependence on the tracer and the baryonic physics
• Calibration of the galaxy cluster M_500-Y_X relation with XMM-Newton
• Mass Calibration and Cosmological Analysis of the SPT-SZ Galaxy Cluster Sample Using Velocity Dispersion ${\sigma }_v$ and X-ray $Y_{\text{X}}$ Measurements
• The Lx-Yx Relation: Using Galaxy Cluster X-Ray Luminosity as a Robust, Low Scatter Mass Proxy
• The X-Ray Luminosity--Mass Relation for Local Clusters of Galaxies
• Galaxy Cluster Scaling Relations between Bolocam Sunyaev-Zel'dovich Effect and Chandra X-ray Measurements
• Measurement of the electron-pressure profile of galaxy clusters in Wilkinson Microwave Anisotropy Probe (WMAP) 3-year data
• The Beta-Model Problem: The Incompatibility of X-ray and Sunyaev-Zeldovich Effect Model Fitting for Galaxy Clusters
• Anomalous SZ Contribution to 3 Year WMAP Data
• Unbiased Correction Relations for Galaxy Cluster properties Derived from Chandra and XMM-Newton