... Z3146

Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the data archive at the Space Telescope Institute (PID-number 8301). STScI is operated by the association of Universities for Research in Astronomy, Inc. under the NASA contract NAS 5-26555. Also based on observations made with ESO Telescopes at the La Silla or Paranal Observatories under programme ID 68.A-02555 and 073.A-0050 and on observations with XMM-Newton, an ESA Science Mission with instruments and contributions directly funded by ESA Member states and the USA (NASA).

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... region

The best fit obtained in Sect. 3.2.1 cannot be extrapolated to the central region ($r \la 230$ kpc) therefore cannot be used here for the purpose of calculating the central cooling time.

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... gradient

As a first-order approximation, the temperature gradient is estimated by least-squares fitting a straight line to the observed deprojected temperature profile.

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... IMCAT

See http://www.ifa.hawaii.edu/~kaiser/imcat

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...$15\hbox{$.\mkern-4mu^\prime$ }0$

We note that for radii larger than $8\hbox {$.\mkern -4mu^\prime $ }0$ we cover the area around the cluster completely only North-West of its centre (see Fig. 8).

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...hyperz

http://webast.ast.obs-mip.fr/hyperz

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... NED

http://nedwww.ipac.caltech.edu/

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... Ofek

http://wise-obs.tau.ac.il/~eran/matlab.html

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... curves

http://www.ls.eso.org/lasilla/sciops/2p2/E2p2M/WFI/filters/

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... Gwyn

http://orca.phys.uvic.ca/~gwyn/pz/specc/

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