Change in the RLF resulting from degrading the resolution of both the FIRST and NVSS catalogs to a minimum source separation of 45′′ (the FWHM of the synthesized beam of NVSS). The shaded regions indicate the RLF computed from the non-degraded NVSS (grey) and FIRST (hashed) data. The error bars indicate the degraded versions; here the counts derived from the FIRST catalog (blue, thin error bars) are in approximate agreement with the NVSS counts (green, thick error bars), despite the large difference in synthesized beam FWHM of the original data.
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