Credible regions for the dimensionless luminosity ν_h and dimensionless core size ρ_c of a halo model, based on the (a) 64 ms and (b) 1024 ms data. Throughout this work crosses show the best‐fit parameter values; contours bound the 68.3% (dotted line), 95.4% (dashed line), and 99.7% (solid line) credible regions of highest posterior density.