Table 6.
Physical properties of DMC DG and TDGC samples at redshift z = 0.
| Properties | Sample | Mdm/Mbaryonic | Minimum | Maximum | Median | Mean |
|---|---|---|---|---|---|---|
| Mstellar [M⊙] | DMC DGs | >0 | 5.0 × 107 | 1.0 × 109 | 1.4 × 108 | 2.4 × 108 |
| DM-rich DGs | ≥1 | 5.0 × 107 | 1.0 × 109 | 1.4 × 108 | 2.4 × 108 | |
| DM-poor DGs | <1 | 5.3 × 107 | 8.9 × 109 | 1.4 × 108 | 3.6 × 108 | |
| TDGCs (A) | 0 | 5.0 × 107 | 3.1 × 109 | 1.5 × 108 | 3.1 × 108 | |
| TDGCs (B) | 0 | 5.1 × 105 | 4.4 × 108 | 2.9 × 106 | 1.0 × 107 | |
| TDGCs (C) | 0 | 5.7 × 107 | 4.3 × 108 | 1.1 × 108 | 1.6 × 108 | |
| Mgas [M⊙] | DMC DGs | >0 | 0.0 | 2.2 × 1010 | 1.8 × 109 | 2.6 × 109 |
| DM-rich DGs | ≥1 | 0.0 | 2.2 × 1010 | 1.8 × 109 | 2.6 × 109 | |
| DM-poor DGs | <1 | 0.0 | 8.4 × 108 | 0.0 | 1.0 × 108 | |
| TDGCs (A) | 0 | 0.0 | 1.5 × 109 | 0.0 | 6.2 × 107 | |
| TDGCs (B) | 0 | 5.4 × 107 | 1.5 × 109 | 2.0 × 108 | 2.5 × 108 | |
| TDGCs (C) | 0 | 1.1 × 108 | 1.5 × 109 | 4.6 × 108 | 5.9 × 108 | |
| κrot | DMC DGs | >0 | 0.19 | 0.75 | 0.40 | 0.42 |
| DM-rich DGs | ≥1 | 0.19 | 0.75 | 0.40 | 0.42 | |
| DM-poor DGs | <1 | 0.28 | 0.46 | 0.34 | 0.35 | |
| TDGCs (A) | 0 | 0.23 | 0.60 | 0.37 | 0.38 | |
| TDGCs (B) | 0 | – | – | – | – | |
| TDGCs (C) | 0 | 0.35 | 0.55 | 0.43 | 0.44 | |
| vdisp [km s−1] | DMC DGs | >0 | 4.0 | 52 | 27 | 26 |
| DM-rich DGs | ≥1 | 6.0 | 52 | 27 | 26 | |
| DM-poor DGs | <1 | 4.0 | 19 | 9.7 | 10 | |
| TDGCs (A) | 0 | 3.7 | 35 | 7.8 | 9.6 | |
| TDGCs (B) | 0 | 1.3 | 26 | 5.4 | 5.8 | |
| TDGCs (C) | 0 | 7.2 | 26 | 13 | 14 | |
| ψsfr [M⊙ yr−1] | DMC DGs | >0 | 0.0 | 0.59 | 0.0031 | 0.013 |
| DM-rich DGs | ≥1 | 0.0 | 0.59 | 0.0031 | 0.013 | |
| DM-poor DGs | <1 | 0.0 | 0.049 | 0.0 | 0.0048 | |
| TDGCs (A) | 0 | 0.0 | 0.95 | 0.0 | 0.027 | |
| TDGCs (B) | 0 | 0.0 | 0.95 | 0.00066 | 0.011 | |
| TDGCs (C) | 0 | 0.0028 | 0.95 | 0.20 | 0.26 | |
| Zstellar | DMC DGs | >0 | 0.00040 | 0.052 | 0.0016 | 0.0021 |
| DM-rich DGs | ≥1 | 0.00040 | 0.029 | 0.0016 | 0.0021 | |
| DM-poor DGs | <1 | 0.0084 | 0.052 | 0.028 | 0.029 | |
| TDGCs (A) | 0 | 0.0089 | 0.052 | 0.019 | 0.022 | |
| TDGCs (B) | 0 | 0.0 | 0.045 | 0.0030 | 0.0047 | |
| TDGCs (C) | 0 | 0.0090 | 0.045 | 0.015 | 0.021 | |
| Zgas | DMC DGs | >0 | 0.0 | 0.025 | 0.0018 | 0.0022 |
| DM-rich DGs | ≥1 | 0.0 | 0.025 | 0.0018 | 0.0022 | |
| DM-poor DGs | <1 | 0.0 | 0.018 | 0.0 | 0.0028 | |
| TDGCs (A) | 0 | 0.0 | 0.053 | 0.0 | 0.0030 | |
| TDGCs (B) | 0 | 0.0 | 0.053 | 0.0033 | 0.0052 | |
| TDGCs (C) | 0 | 0.010 | 0.053 | 0.022 | 0.027 | |
| tage [Gyr] | DMC DGs | >0 | – | – | – | – |
| DM-rich DGs | ≥1 | 7.29 | 13.5 | 12.8 | 12.7 | |
| DM-poor DGs | <1 | 1.8 | 13.3 | 9.2 | 8.9 | |
| TDGCs (A) | 0 | 0.47 | 11.7 | 8.0 | 7.6 | |
| TDGCs (B) | 0 | 0.0 | 12.0 | 1.0 | 1.5 | |
| TDGCs (C) | 0 | – | – | – | – | |
Notes. Listed are the stellar mass, Mstellar, gas mass, Mgas, kinematical morphological parameter, κrot, 1D velocity dispersion of all the member particles/cells, vdisp, star formation rate, ψsfr, and the stellar and gas mass-weighted average metallicities, Zstellar = (M> He/Mtot)stellar and Zgas = (M> He/Mtot)gas, where M> He is the mass of all elements above Helium (only cells within twice the stellar half-mass radius are considered), and the age, tage, of the oldest stellar particle within a dwarf galaxy identified at redshift z = 0. The metallicities of TDGCs are analyzed in more detail in Appendix B.
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