Table 2
Parameters describing the best-fitting NFW (where α is fixed to 1) and gNFW (where α is a free parameter) profiles to the radial density distributions.
| Stellar mass | Number density | Number density | |||||||
| density | 109<M⋆/M⊙< 1010 | M⋆> 1010M⊙ | |||||||
| Sample | c gNFW | α gNFW |
|
c gNFW | α gNFW |
|
c gNFW | α gNFW |
|
|
|
|||||||||
| All (NFW) |
|
1 (fixed) | 2.51 |
|
1 (fixed) | 1.19 |
|
1 (fixed) | 3.00 |
| All |
|
|
1.24 |
|
|
1.04 |
|
|
1.19 |
| z< 0.114 |
|
|
1.06 |
|
|
1.09 |
|
|
0.83 |
| z ≥ 0.114 |
|
|
1.71 |
|
|
1.06 |
|
|
1.97 |
| M200< 8.6 × 1014M⊙ |
|
|
1.06 |
|
|
0.64 |
|
|
1.63 |
| M200 ≥ 8.6 × 1014M⊙ |
|
|
1.67 |
|
|
2.08 |
|
|
0.84 |
| M⋆,BCG< 9.1 × 1011M⊙ |
|
|
2.17 |
|
|
1.31 |
|
|
2.12 |
| M⋆,BCG ≥ 9.1 × 1011M⊙ |
|
|
0.82 |
|
|
1.04 |
|
|
0.56 |
| n1Mpc,M⋆> 1010M⊙< 87 |
|
|
0.87 |
|
|
0.70 |
|
|
0.80 |
| n1Mpc,M⋆> 1010M⊙ ≥ 87 |
|
|
1.51 |
|
|
1.75 |
|
|
1.18 |
| K0< 70 keV cm2 |
|
|
1.46 |
|
|
1.90 |
|
|
0.71 |
| K0 ≥ 70 keV cm2 |
|
|
1.06 |
|
|
2.00 |
|
|
0.97 |
Notes. Both random (due to sample-to-sample variance) and systematic (due to cosmic variance) uncertainties are quoted. The reduced χ2 values show that the gNFW profiles give significantly better descriptions of the data. The sample is split according to several criteria to investigate the dependence of these parameters on cluster properties.
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