Table 3.
Results from the spectral synthesis of the two cEs by means of the code STARLIGHT.
| [α/Fe] = 0.0 | [α/Fe] = 0.4 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lum. weighted | Mass weighted | Lum. weighted | Mass weighted | |||||||
| Age | [Z/H] | Age | [Z/H] | χfit2 | Age | [Z/H] | Age | [Z/H] | χfit2 | |
| (Gyr) | (dex) | (Gyr) | (dex) | (Gyr) | (dex) | (Gyr) | (dex) | |||
| FS90 110 | ||||||||||
| Entire Spectrum | 8.6 ± 0.7 | 0.18 ± 0.02 | 11.0 ± 0.6 | 0.18 ± 0.02 | 0.53 | 10.9 ± 0.4 | 0.18 ± 0.02 | 11.2 ± 0.4 | 0.18 ± 0.02 | 0.61 |
| Nuclear Comp | 12.1 ± 0.4 | 0.12 ± 0.03 | 12.6 ± 0.3 | 0.13 ± 0.02 | 0.41 | 12.6 ± 0.3 | 0.18 ± 0.02 | 12.7 ± 0.3 | 0.18 ± 0.02 | 0.49 |
| Inner Comp | 8.2 ± 0.7 | 0.18 ± 0.02 | 11.6 ± 0.5 | 0.18 ± 0.02 | 1.03 | 10.4 ± 0.5 | 0.12 ± 0.05 | 11.0 ± 0.4 | 0.16 ± 0.03 | 1.06 |
| FS90 192 | ||||||||||
| Entire Spectrum | 13.8 ± 0.3 | −0.28 ± 0.04 | 13.9 ± 0.3 | −0.22 ± 0.05 | 0.73 | 13.5 ± 0.6 | −0.14 ± 0.09 | 13.6 ± 0.6 | −0.10 ± 0.06 | 0.65 |
| Nuclear Comp | 13.5 ± 0.3 | −0.17 ± 0.05 | 13.6 ± 0.3 | −0.08 ± 0.04 | 0.48 | 13.7 ± 0.3 | −0.13 ± 0.02 | 13.8 ± 0.3 | −0.10 ± 0.02 | 0.45 |
| Inner Comp | 13.3 ± 0.4 | −0.38 ± 0.04 | 13.9 ± 0.3 | −0.38 ± 0.02 | 1.32 | 12.8 ± 0.6 | −0.24 ± 0.08 | 13.3 ± 0.5 | −0.18 ± 0.05 | 1.33 |
Notes. The table lists mean stellar ages and metallicities (luminosity and mass-weighted), two different set of templates, with [α/Fe] = 0 or 0.4, and three different extractions for each galaxy: the entire radial range of the spectrum, up to 1 arcsec from the centre (nuclear component), and the regions at both sides of it (inner component). The errors are based on 100 Monte-Carlos realisations.
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