Table 1
Best fit parameters for a generalised NFW pressure profile, with different numbers of fixed parameters.
| P0 | c500 | γ | α | β |
|
Ndof |
|
|
||||||
| All clusters | ||||||
|
|
||||||
| 6.32 | 1.02 | 0.31† | 1.05† | 5.49† | 3.8 | 15 |
| 6.82 | 1.13 | 0.31† | 1.05† | 5.17! | 5.8 | 14 |
| 6.41 | 1.81 | 0.31† | 1.33! | 4.13! | 0.9 | 13 |
| 5.78 | 1.84 | 0.35! | 1.39! | 4.05! | 1.0 | 13 |
|
|
||||||
| Cool-core clusters | ||||||
|
|
||||||
| 11.82 | 0.60 | 0.31† | 0.76! | 6.58! | 1.1 | |
|
|
||||||
| Non cool-core clusters | ||||||
|
|
||||||
| 4.72 | 2.19 | 0.31† | 1.82! | 3.62! | 1.2 | |
Notes. Fixed parameters which are assigned the best fit values of the A10 profile. The value is the reduced χ2 computed with respect to the statistical error bars (i.e., not including the dispersion across the sample). The bold-face line indicates the best parametric representation of our combined XMM-Newton and Planck pressure profile (see Sect. 6.3 for further details). The number of degrees of freedom is given in the last column.
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