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Fig. 2

image

Radial density profile of cluster region. Black dots are the stars /px2 RDP points taking the cluster center as the origin; the horizontal blue line is the field density value dfield, as indicated in Sect. 2.2.2; the red arrow marks the assigned radius with the uncertainty region marked as a gray shaded area; a 2P King profile fit is indicated with the green broken curve with the rcore (core radius) value shows as a vertical green line.

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