Table 2
Spearman’s rank correlation coefficients.
| Sample | ρ z | ρ T | ρ σ | ρ σ,z |
|
|
||||
| 0−0.15 R500 | −0.25 (2.07) | −0.31 (2.54) | −0.39 (3.27) | 0.18 (−1.51) |
| 0.15−0.4 R500 | −0.24 (2.18) | −0.13 (1.14) | −0.13 (1.18) | 0.31 (−2.80) |
| >0.4 R500 | −0.20 (1.63) | −0.09 (0.75) | −0.10 (0.84) | 0.23 (−1.85) |
| All | −0.20 (3.04) | −0.09 (1.27) | −0.20 (2.93) | 0.25 (−3.66) |
Notes. The Spearman’s rank correlation coefficients (and the significance in terms of the standard deviations by which the sum-squared difference of ranks deviates from its null-hypothesis expected value) between metallicity and redshift (ρz), metallicity and temperature (ρT), metallicity and pseudo-entropy ratio (ρσ), and pseudo-entropy ratio and redshift (ρσ,z), respectively. The pseudo-entropy ratio is larger in NCC systems.
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