Table 6
The Y500–YX relation.
| Power-law fit | Mean ratio | ||||||||||
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|
|
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| Sample | MB | Profile | N | 100A | α |
|
|
Δlog Q | 100σint | 100σraw | |
|
|
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| PEPXI ......... | N | A10 | 62 | −2.0 ± 1.0 | 0.960 ± 0.040 | 10.0 ± 1.0 | ... | −0.022 ± 0.014 | ... | ... | |
| ESZ ......... | N | A10 | 62 | −2.2 ± 1.1 | 0.966 ± 0.034 | 7.2 ± 1.1 | 8.2 ± 1.0 | −0.023 ± 0.011 | 7.3 ± 1.1 | 8.5 | |
| ESZ ......... | Y | A10 | 62 | −3.0 ± 1.1 | 0.975 ± 0.035 | 7.1 ± 1.1 | 8.2 ± 1.0 | −0.031 ± 0.011 | 7.2 ± 1.1 | 8.4 | |
| S/N > 7 ......... | Y | A10 | 78 | −2.4 ± 1.0 | 0.972 ± 0.029 | 6.9 ± 1.1 | 8.1 ± 0.9 | −0.024 ± 0.010 | 6.9 ± 1.0 | 8.3 | |
| Cosmo ......... | Y | A10 | 71 | −1.9 ± 1.1 | 0.990 ± 0.032 | 7.2 ± 1.2 | 8.3 ± 1.0 | −0.021 ± 0.010 | 6.9 ± 1.0 | 8.3 | |
| Cosmo ......... | Y | A10+err | 71 | −1.9 ± 1.1 | 0.987 ± 0.031 | 6.3 ± 1.1 | 7.9 ± 0.9 | −0.019 ± 0.010 | 6.5 ± 1.1 | 8.2 | |
| Cosmo ......... | Y | PIP-V | 71 | −2.6 ± 1.0 | 0.981 ± 0.027 | 6.6 ± 1.2 | 7.8 ± 1.0 | −0.027 ± 0.010 | 6.6 ± 1.0 | 8.0 | |
| REXCESS X-ray prediction .......... | −0.034 ± 0.002 | ||||||||||
Notes. “MB” is the Malmquist bias correction and “Profile” is the shape used in Y500 extraction. Parameters are given for the fit Y500/Yp = A (YX/Yp)α using BCES orthogonal regression with pivot Yp = 10-4Mpc2, along with the intrinsic and raw scatter around the best-fit relation. The mean ratio is Δlog Q = log (Y500/YX), with corresponding intrinsic and raw scatter. Scatters are error-weighted values. The best estimate is in bold type. The REXCESS prediction is from Arnaud et al. (2010).
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