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Table 2
Average flux and luminosity per GC, measured by the stacking experiment for all sources, as well as the red and blue subsamples, in the two different annular regions described in the text.
| Sample | No. of | ⟨ fX ⟩ GC | ⟨ LX ⟩ GC |
| sources | [10-17 erg cm-2 s-1] | [1036 erg s-1] | |
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| Total sample: 60′′<r< 240′′ | |||
| All GCs | 618 | 13 ± 1.6 | 6.2 ± 0.8 |
| Red GCs | 302 | 19 ± 2.4 | 8.9 ± 1.0 |
| Blue GCs | 316 | 7.5 ± 2.2 | 3.6 ± 1.0 |
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| Restricted sample: 120′′<r< 180′′ | |||
| All GCs | 210 | 7.5 ± 2.0 | 3.6 ± 1.0 |
| Red GCs | 101 | 14 ± 4 | 6.9 ± 2.1 |
| Blue GCs | 109 | 3.6 ± 1.9 | 1.7 ± 0.9 |
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