Table 2.
Adopted and derived parameters.
| Galaxy | Re | D | LV | log(t90/yr) | log(t50/yr) | [Fe/H]0 | ∇[Fe/H](R/Re) | ∇[Fe/H](R) |
|---|---|---|---|---|---|---|---|---|
| [arcmin] | [kpc] | [106 L⊙] | [dex] | [dex] | [dex  ] |
[dex kpc−1] | ||
| SMC | 81.0 | 64 ± 4 | 461 ± 99 | – | – | −0.94 | −0.101 ± 0.006 | −0.067 ± 0.004 |
| Fnx | 18.5 | 139 ± 3 | 18.5 ± 2.5 |  |
 |
−0.92 | −0.23 ± 0.02 | −0.31 ± 0.03 |
| LeoI | 3.53 | 269 ± 12 | 5.0 ± 1.4 |  |
 |
−1.32 | −0.09 ± 0.01 | −0.33 ± 0.04 |
| Scl | 12.4 | 84 ± 2 | 1.74 ± 0.23 |  |
 |
−1.58 | −0.14 ± 0.01 | −0.45 ± 0.04 |
| LeoII | 2.46 | 217 ± 11 | 0.58 ± 0.06 |  |
 |
−1.53 | −0.21 ± 0.03 | −1.36 ± 0.19 |
| Car | 10.2 | 106 ± 6 | 0.51 ± 0.06 |  |
 |
−1.69 | −0.04 ± 0.03 | −0.12 ± 0.09 |
| Sxt | 21.4 | 85 ± 1 | 0.42 ± 0.20 |  |
 |
−2.02 | −0.32 ± 0.05 | −0.60 ± 0.09 |
| AntlII | 76.2 | 132 ± 7 | 0.35 ± 0.06 | – | – | −1.75 | −0.15 ± 0.07 | −0.05 ± 0.02 |
| UMi | 18.2 | 76 ± 4 | 0.35 ± 0.04 |  |
 |
−2.02 | −0.15 ± 0.02 | −0.37 ± 0.06 |
| Dra | 9.61 | 81 ± 3 | 0.29 ± 0.02 |  |
 |
−1.86 | −0.07 ± 0.01 | −0.32 ± 0.07 |
| CVnI | 7.5 | 211 ± 5 | 0.22 ± 0.04 |  |
 |
−1.91 | 0.00 ± 0.09 | 0.00 ± 0.19 |
| CratII | 31.2 | 117 ± 4 | 0.16 ± 0.02 | – | – | −2.16 | 0.00 ± 0.09 | 0.00 ± 0.09 |
| M32 | 0.47 | 805 ± 78 | 319 ± 68 |  |
 |
−1.19 | 0.00 ± 0.05 | 0.00 ± 0.43 |
| N205 | 2.46 | 824 ± 27 | 334 ± 38 |  |
 |
−0.85 | 0.00 ± 0.02 | 0.00 ± 0.03 |
| N185 | 2.94 | 619 ± 20 | 68.5 ± 8.0 |  |
 |
−0.44 | −0.20 ± 0.03 | −0.37 ± 0.06 |
| N147 | 6.7 | 711 ± 20 | 68.5 ± 7.0 |  |
 |
−0.54 | 0.00 ± 0.07 | 0.00 ± 0.05 |
| AndVII | 3.5 | 762 ± 35 | 16.5 ± 5.0 |  |
 |
−1.26 | 0.00 ± 0.14 | 0.00 ± 0.18 |
| AndII | 6.2 | 631 ± 15 | 8.5 ± 1.6 |  |
 |
−0.77 | −0.39 ± 0.07 | −0.34 ± 0.06 |
| AndV | 1.4 | 741 ± 22 | 0.5 ± 0.1 |  |
 |
−1.79 | −0.10 ± 0.05 | −0.33 ± 0.17 |
| N6822 | 11.95 | 470 ± 37 | 109 ± 26 |  |
 |
−0.89 | −0.46 ± 0.13 | −0.28 ± 0.08 |
| IC1613 | 7.57 | 759 ± 5 | 103 ± 10 |  |
 |
−1.10 | −0.06 ± 0.08 | −0.04 ± 0.05 |
| WLM | 4.1 | 933 ± 34 | 43 ± 5 |  |
 |
−1.27 | 0.00 ± 0.05 | 0.00 ± 0.04 |
| VV124 | 1.15 | 1324 ± 79 | 7.9 ± 1.7 | – | – | −1.25 | −0.12 ± 0.04 | −0.28 ± 0.10 |
| LeoA | 2.3 | 718 ± 17 | 4.8 ± 0.9 |  |
 |
−1.39 | −0.16 ± 0.05 | −0.32 ± 0.10 |
| PegDIG | 3.81 | 759 ± 70 | 4.5 ± 1.2 |  |
 |
−1.21 | −0.29 ± 0.12 | −0.34 ± 0.14 |
| SagDIG | 1.43 | 1067 ± 88 | 3.5 ± 0.9 |  |
 |
−1.84 | 0.00 ± 0.08 | 0.00 ± 0.18 |
| Cet | 3.2 | 755 ± 24 | 2.8 ± 0.5 |  |
 |
−1.55 | −0.10 ± 0.05 | −0.14 ± 0.06 |
| Aqu | 1.63 | 1072 ± 40 | 1.6 ± 0.2 |  |
 |
−1.53 | −0.08 ± 0.08 | −0.15 ± 0.16 |
| Phx | 2.3 | 409 ± 23 | 0.75 ± 0.30 |  |
 |
−0.98 | −0.35 ± 0.05 | −1.28 ± 0.17 |
| Tuc | 1.1 | 887 ± 49 | 0.6 ± 0.1 |  |
 |
−1.56 | −0.07 ± 0.04 | −0.24 ± 0.16 |
Notes. Half-light radii (Col. 2), distances (Col. 3), V-band luminosities (Col. 4), and star formation timescales (i.e. t50 and t90; Cols. 5-6) for the galaxy samples (Col. 1), together with their calculated central [Fe/H] values (i.e. the initial value of the GPR curves; Col. 7) and [Fe/H] gradients (Cols. 8-9). The values in Cols. 3-4 are obtained from the V-band magnitudes listed in the updated catalogue (January 2021) of McConnachie (2012), and the distance modules are listed in Battaglia et al. (2022) and the references of Table A.1; Cols. 5-6 are from the compilation of Weisz et al. (2014), except for the values reported in Albers et al. (2019) and Bettinelli et al. (2018).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.