Table 2.
Best-fit mass-metallicity relation parameters for the MQN01 sample and the reference samples.
| Sample | Range of log M*/M⊙ | k | log M0 | Z0 | log Mref | Z at log Mref |
|---|---|---|---|---|---|---|
| MQN01 | (7.5, 10.5) | 0.32 ± 0.08 | 9.45 | 8.52 ± 0.06 | 10 | 8.67 ± 0.07 |
| (9.0, 10.5) | 0.45 ± 0.15 | 9.49 | 8.46 ± 0.09 | 10 | 8.67 ± 0.12 | |
| (7.5, 10.0) | 0.15 ± 0.16 | 9.40 | 8.36 ± 0.14 | 8 | 8.15 ± 0.27 | |
| Sanders et al. (2021) | (9.0, 11.0) | 0.29 ± 0.02 | 10 | 8.41 ± 0.03 | 10 | 8.41 ± 0.03 |
| Li et al. (2023) | (6.5, 10.0) | 0.16 ± 0.03 | 8 | 8.08 ± 0.03 | 8 | 8.08 ± 0.03 |
Notes. The pivot mass (log M0) for the MQN01 sample is the mean mass weighted by the inverse variance of the metallicities, where asymmetric errors were symmetrized by averaging the upper and lower values. The metallicities of the MQN01 sample at the pivot masses of the reference samples are also listed for comparison. We set 1010 M⊙ and 108 M⊙ as the reference stellar masses (Mref) for the high- and low-mass regimes, respectively, matching the M0 in the parameterized MZR fits of the field galaxy samples, for a direct comparison.
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