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Table 4.

Stellar population parameters of the INSPIRE DR1 galaxies, obtained from the spectra extracted with the two different methods.

ID tUni, z Ext. MAX tREG = 0 tRMAX δAge ZREG = 0 ZRMAX δZ σ⋆, st.pop. [Mg/Fe]
KiDS (Gyr) method REGUL (Gyr) (Gyr) (Gyr) (km s−1)
J0211–3155 10.3 OptExt 31.0 10.5 10.0 0.2 +0.22 +0.23 0.02 236 ± 4 0.2 ± 0.1
R50 36.0 10.5 9.8 0.2 +0.23 +0.25 0.02 234 ± 4 0.3 ± 0.1
J0224–3143 9.5 OptExt 6.0 9.1 8.5 0.2 +0.24 +0.26 0.02 246 ± 1 0.3 ± 0.1
R50 5.5 9.1 8.8 0.2 +0.25 +0.28 0.02 250 ± 2 0.3 ± 0.1
J0226–3158 10.9 OptExt 46.0 10.6 9.9 0.2 +0.15 +0.21 0.02 182 ± 2 0.2 ± 0.1
R50 3000.0 8.5 7.9 0.2 +0.10 +0.12 0.02 184 ± 2 0.0 ± 0.1
J0240–3141 10.5 OptExt 1092.5 8.8 8.2 0.2 +0.26 +0.22 0.01 219 ± 2 0.0 ± 0.1
R50 115.0 9.1 7.1 0.3 +0.27 +0.30 0.02 217 ± 1 0.0 ± 0.1
J0314–3215 10.4 OptExt 2831.0 8.7 6.4 0.3 +0.13 +0.17 0.02 179 ± 3 0.1 ± 0.1
R50 27.0 7.6 7.8 0.2 +0.18 +0.19 0.02 171 ± 2 0.2 ± 0.1
J0316–2953 9.7 OptExt 50.0 7.7 7.2 0.4 +0.11 +0.11 0.03 169 ± 3 0.3 ± 0.1
R50 14.0 8.3 7.7 0.4 +0.09 +0.07 0.04 173 ± 4 0.4 ± 0.1
J0317–2957 10.6 OptExt 12.0 10.5 9.9 0.2 +0.04 +0.09 0.02 161 ± 3 0.4 ± 0.1
R50 11.5 10.2 9.3 0.2 +0.23 +0.28 0.01 168 ± 3 0.3 ± 0.1
J0321–3213 10.3 OptExt 39.0 10.4 9.6 0.3 +0.01 +0.04 0.03 190 ± 3 0.4 ± 0.1
R50 24.0 8.3 8.1 0.3 +0.13 +0.08 0.02 190 ± 3 0.3 ± 0.1
J0326–3303 10.3 OptExt 62.0 9.6 9.3 0.2 −0.06 −0.01 0.02 156 ± 3 0.2 ± 0.1
R50 81.0 8.7 8.6 0.3 −0.09 −0.05 0.02 162 ± 3 0.2 ± 0.1
J0838+0052 10.6 OptExt 10.0 10.1 9.4 0.2 +0.09 +0.09 0.02 168 ± 3 0.4 ± 0.1
R50 9.0 10.1 9.3 0.2 +0.15 +0.16 0.02 173 ± 3 0.3 ± 0.1
J0842+0059 10.3 OptExt 27.0 10.5 9.9 0.2 +0.24 +0.28 0.03 297 ± 8 0.4 ± 0.1
R50 27.0 10.5 9.9 0.2 +0.24 +0.28 0.03 285 ± 8 0.4 ± 0.1
J0847+0112 11.5 OptExt 6.5 11.5 11.2 0.2 +0.27 +0.31 0.01 224 ± 3 0.3 ± 0.1
R50 26.5 11.4 11.1 0.2 +0.32 +0.36 0.01 235 ± 2 0.2 ± 0.1
J0857–0108 10.6 OptExt 13.5 9.8 9.2 0.2 +0.18 +0.21 0.02 160 ± 3 0.2 ± 0.1
R50 299.0 9.3 8.7 0.2 +0.25 +0.21 0.01 167 ± 2 0.1 ± 0.1
J0918+0122 9.6 OptExt 93.5 8.1 7.4 0.2 +0.25 +0.26 0.02 233 ± 3 0.1 ± 0.1
R50 34.5 8.0 7.3 0.2 +0.26 +0.32 0.02 242 ± 3 0.1 ± 0.1
J0920+0212 10.5 OptExt 49.0 9.7 9.5 0.2 +0.29 +0.29 0.02 225 ± 4 0.2 ± 0.1
R50 7.0 10.3 9.5 0.2 +0.24 +0.27 0.01 230 ± 3 0.2 ± 0.1
J2305–3436 10.3 OptExt 17.5 10.4 9.9 0.2 +0.28 +0.34 0.03 313 ± 1 0.4 ± 0.1
R50 19.0 10.5 10.0 0.2 +0.29 +0.35 0.02 309 ± 1 0.3 ± 0.1
J2312–3438 9.7 OptExt 18.0 8.6 7.8 0.3 +0.03 +0.05 0.02 210 ± 3 0.3 ± 0.1
R50 18.0 7.6 6.8 0.4 +0.08 +0.09 0.02 220 ± 1 0.2 ± 0.1
J2327–3312 9.3 OptExt 3000.0 4.6 2.7 0.5 +0.12 +0.11 0.02 214 ± 2 0.1 ± 0.1
R50 63.0 3.9 3.6 0.5 +0.20 +0.18 0.02 213 ± 2 0.2 ± 0.1
J2359–3320 10.4 OptExt 45.5 10.4 9.5 0.2 +0.35 +0.34 0.03 221 ± 3 0.2 ± 0.1
R50 45.0 10.4 9.6 0.2 +0.31 +0.32 0.03 219 ± 4 0.2 ± 0.1

Notes. The second column reports the age of the Universe at the redshift of the systems. The last column lists the [Mg/Fe] values inferred from line indices, while mass-weighted ages and metallicites, provided in the central block of columns, are obtained from the PPXF fit, in the unregularised and regularised cases, as described in the text. The uncertainties associated with these measurements include only the error budget associated with the observational noise in the assumption of independent Gaussian errors on each pixel. This is estimated repeating the fit multiple times, changing the configuration, the setup and the regularisation of the fit (always kept between 0 and MAX_REGUL, also listed in the table). Finally, we also give the estimated stellar velocity dispersion obtained during the stellar population PPXF fit. The new values are fully consistent with the previous ones derived in Sect. 5.

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