Table 1: Estimated star cluster surface densities at different elliptical annuli from sample in B filter.

Range (pix)
NPTS NPTSw $\rho_0$ (kpc-2) $N_{\rm GC}$ (range) $N_{\rm GC}$ (cum.)
0-100 * * 1.59 $\pm$ 0.40 253.5 $\pm$ 63.8 253.5 $\pm$ 63.8
100-200 36 85.4 0.82 $\pm$ 0.21 392.2 $\pm$ 100.4 645.7 $\pm$ 164.2
200-350 121 267.2 0.60 $\pm$ 0.09 789.2 $\pm$ 118.4 1434.9 $\pm$ 282.6
350-500 175 378.5 0.38 $\pm$ 0.05 772.5 $\pm$ 101.6 2207.4 $\pm$ 384.2
500-800 413 761.2 0.08 $\pm$ 0.02 497.4 $\pm$ 124.4 2704.8 $\pm$ 508.6
Column 1: range in pixels between inner and outer semi-major axes of annulus used for source counts (1 kpc = 21 pixels); Col. 2: total number of sources found in the annulus; Col. 3: total weighted number of sources in annulus; Col. 4: normalization density of Gaussian fit to GCLF at given annulus, as explained in text (in units of kpc-2); total expected number of clusters in annulus, obtained as explained in the text.


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