The matter distribution in z ~ 0.5 redshift clusters of galaxies - II. The link between dark and visible matter

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Volume 581 (September 2015)

A&A, 581 (2015) A31

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Table 1

General properties of the clusters and summary of the observations made in the r′ band, i.e. the data used for the weak-lensing analysis.

Cluster	RA	Dec	Redshift	Exp. time	Seeing	Completeness	Galaxy	Background
	(J2000)	(J2000)	z	(s)	(′′)	in r′ (50%)	density	galaxy density

MS 0015.9+1609	00^h18^m33.26^s	+ 16°26′12.9′′	0.541	5600	0.82	24.50	26.0	18.0
MS 0451.6–0305	04^h54^m10.85^s	−03°00′57.0′′	0.537	7200	0.77	24.75	30.6	23.5
RXC J0856.1+3756	08^h56^m12.69^s	+ 37°56′15.0′′	0.411	7200	0.66	24.90	32.7	23.3
RX J0943.0+4659	09^h42^m56.60^s	+ 46°59′22.0′′	0.407	7200	0.87	24.60	23.7	16.5
RXC J1003.0+3254	10^h03^m04.62^s	+ 32°53′40.6′′	0.416	7200	0.79	24.55	26.2	19.2
RX J1120.1+4318	11^h20^m07.47^s	+ 43°18′06.0′′	0.612	7200	0.60	24.85	29.6	23.5
RXC J1206.2–0848	12^h06^m12.13^s	−08°48′03.6′′	0.441	7200	0.85	24.90	32.0	26.5
MS 1241.5+1710	12^h44^m01.46^s	+ 16°53′43.9′′	0.549	7200	0.72	24.85	33.0	16.3
RX J1347.5–1145	13^h47^m32.00^s	−11°45′42.0′′	0.451	7200	0.77	24.95	29.6	25.8
MS 1621.5+2640	16^h23^m35.16^s	+ 26°34′28.2′′	0.426	7200	0.60	25.05	37.1	28.9
RX J2228.5+2036	22^h28^m33.73^s	+ 20°37′15.9′′	0.412	7200	0.69	24.85	33.5	25.6

Notes. The last columns give the mean galaxy number densities before and after removal of foreground and cluster contamination (in units of arcmin^-2).

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