Table 4
Results of the single and double Gaussian fits to the GCLF.
| Annulus (kpc) | Ntot | N2/Ntot | σ1 (mag) (µ1 ≡ 26.24) | σ2 (mag) (µ2 ≡ 26.54) | Reduced χ2 |
|---|---|---|---|---|---|
| 20–40 | 6100 ± 400 | – | 1.39 ± 0.05 | – | 1.01 |
| 40–100 | 12 600 ± 800 | 0.25 ± 0.05 | 1.46 ± 0.04 | 0.84 ± 0.07 | 0.93 |
| 100–200 | 17 200 ± 1400 | 0.44 ± 0.08 | 1.48 ± 0.07 | 0.80 ± 0.05 | 1.06 |
| 200–500 | 34 100 ± 2300 | 0.51 ± 0.06 | 1.42 ± 0.07 | 0.72 ± 0.04 | 1.54 |
| 20–500 | 70 000 ± 2800 | 0.40 ± 0.04 |
Notes. Double Gaussian fits were performed on the GCLF in the three outer annuli, while a single Gaussian fit was applied to the GCLF in the 20–40 kpc annulus. NTot refers to the total number of GCs in each annulus extrapolated from IE < 26.2 assuming the GCLF follows the Gaussian (or double Gaussian) model. The mean of each Gaussian was fixed to the listed µ. N2 /Ntot lists the fraction of GCs in the narrow Gaussian component in each annulus. σ1 and σ2 are the standard deviations of the Gaussian distributions fixed to a mean of IE = 26.24 and IE = 26.54, respectively. The goodness-of-fit of the model is given by the reduced χ2 metric having 16 degrees of freedom.
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