Fig. 9.
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Surface density profile as a function of distance from the central quasar. The data were binned using 2 pMpc bins. Red arrows indicate the 1σ upper limits based on non-detections and assuming a Poisson uncertainty. The blue-shaded region is the average upper limit for the degraded CDFS data. The dashed line is the maximum theoretical collapse radius found by Overzier et al. (2009).
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