Table 4
Spectral indices.
| Cluster | Sample | Ngal | H6a | σ | Dn4000 | σ | [OII] | σ |
| Å | Å | Å | Å | |||||
|
|
||||||||
| J1252 | HDMD | 8 | 3.8 | 1.5 | 1.428 | 0.041 | –2.7 | 1.1 |
| J1252 | IDMD | 19 | 2.3 | 1.0 | 1.205 | 0.023 | –14.1 | 1.2 |
| J1252 | LDMD | 23 | 4.5 | 0.9 | 1.124 | 0.013 | –20.1 | 0.5 |
| J1252 | High-mass | 26 | 2.6 | 0.7 | 1.311 | 0.020 | –5.6 | 0.6 |
| J1252 | Low-mass | 24 | 4.6 | 0.9 | 1.106 | 0.013 | –23.6 | 0.5 |
| J1252 | HDMD Passive | 6 | 4.2 | 1.4 | 1.504 | 0.057 | –0.8 | 1.2 |
| J1252 | IDMD Passive | 11 | 2.5 | 1.7 | 1.405 | 0.041 | –1.2 | 1.7 |
| J1252 | IDMD Star-forming | 8 | 4.1 | 1.6 | 1.116 | 0.016 | –33.3 | 1.2 |
| J1252 | LDMD Passive | 6 | 3.5 | 1.5 | 1.357 | 0.032 | –6.4 | 1.2 |
| J1252 | LDMD Star-forming | 17 | 4.8 | 1.0 | 1.084 | 0.015 | –26.1 | 0.5 |
| J1252 | High-mass Passive | 20 | 2.2 | 0.8 | 1.428 | 0.029 | –1.1 | 0.8 |
| J1252 | High-mass Star-forming | 6 | 5.4 | 1.6 | 1.114 | 0.016 | –13.0 | 1.2 |
| J1252 | Low-mass Passive | 3 | 9.1 | 2.5 | 1.259 | 0.082 | –8.0 | 2.6 |
| J1252 | Low-mass Star-forming | 21 | 4.4 | 1.0 | 1.078 | 0.015 | –28.3 | 0.5 |
| J0152 | HDMD | 22 | 2.1 | 0.2 | 1.701 | 0.012 | 0.8 | 0.5 |
| J0152 | IDMD | 37 | 3.4 | 0.4 | 1.659 | 0.012 | –4.5 | 0.6 |
| J0152 | LDMD | 65 | 3.5 | 0.5 | 1.269 | 0.008 | –18.2 | 0.4 |
| J0152 | High-mass | 41 | 2.7 | 0.3 | 1.707 | 0.011 | –2.6 | 0.5 |
| J0152 | Low-mass | 83 | 3.2 | 0.5 | 1.282 | 0.010 | –21.9 | 0.5 |
| J0152 | HDMD Passive | 22 | 2.1 | 0.2 | 1.701 | 0.012 | 0.8 | 0.5 |
| J0152 | IDMD Passive | 29 | 3.5 | 0.3 | 1.707 | 0.012 | –1.1 | 0.7 |
| J0152 | IDMD Star-forming | 8 | 2.5 | 0.8 | 1.497 | 0.031 | –17.3 | 1.0 |
| J0152 | LDMD Passive | 31 | 2.9 | 0.3 | 1.585 | 0.012 | –1.7 | 0.5 |
| J0152 | LDMD Star-forming | 34 | 3.9 | 0.6 | 1.120 | 0.010 | –33.7 | 0.5 |
| J0152 | High-mass Passive | 34 | 2.6 | 0.2 | 1.726 | 0.009 | 0.3 | 0.4 |
| J0152 | High-mass Star-forming | 7 | 2.4 | 0.7 | 1.545 | 0.019 | –10.9 | 0.8 |
| J0152 | Low-mass Passive | 48 | 2.5 | 0.3 | 1.578 | 0.013 | –1.2 | 0.6 |
| J0152 | Low-mass Star-forming | 35 | 3.8 | 0.6 | 1.096 | 0.011 | –38.5 | 0.5 |
Notes. Mass and density categories in Col. 2 are defined as follows: HDMD = high dark-matter density, IDMD = intermediate dark-matter density, LDMD = low dark-matter density, High-mass is above 7 × 1010M⊙, and low-mass is below 7 × 1010M⊙. Passive galaxies lack a visual [OII] detection, while star-forming galaxies show definite or highly probable [OII].
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