Remedies for Police Misconduct

Bayesian analysis of weak gravitational lensing and Sunyaev-Zel’dovich data for six galaxy clusters★

“…A check on the selection method was made by examining the spectroscopically confirmed cluster members for A115 (Barrena et al 2007) and A2111 (Miller, Oegerle & Hill 2006;Ascaso et al 2008) and matching their positions with those in our catalogue; they were found to lie along the same red sequences. Slightly older data from Dressler et al (1999) and Belloni & Roeser (1996) were used to find likely cluster members of A851, with an estimated reliability of 80 per cent. The brightest cluster galaxies of the three less extensively observed clusters A1914, A611 and A2259 are also marked in Fig.…”

“…Reliably spectroscopically identified cluster galaxies are circled and references are given in the subfigure captions. In the case of A851, the identification of cluster members is only accurate to 80 per cent (Belloni & Roeser 1996) and these are encased by s. In each subfigure, the solid line shows the red sequence fit described in Table 4, while the dashed lines show the upper and lower limits on the space excluded from the field galaxy selection. is not shown as the lensing signal was too weak to recover good cluster parameters.…”