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Table 2

Near- to far-infrared observations of A983 and A1731.

Cluster Instrument λcent [μm] Date Time [min] Coverage [′2] FWHM of PSF [′′]

Abell 983 IRAC 3.6 4.5 5.8 8.0 2005 Nov. 26 72.9 (each) 1600 1.66 1.72 1.88 1.98
MIPS 24 2006 May 07 498.6 2200 5.9
MIPS 70 2006 May 07 498.6 2035 16
MIPS 160 2006 May 07 498.6 2000 40
WIRC J 1.250 2007 Mar. 26-27 61.0 1000 1.3
WIRC H 1.635 2007 Mar. 26-27 99.3 1000 1.2
WIRC Ks 2.150 2007 Mar. 26-27 67.2 1000 1.4
Abell 1731 IRAC 3.6 4.5 5.8 8.0 2005 Jun. 13 72.7 (each) 1600 1.66 1.72 1.88 1.98
MIPS 24 05 Dec. 08/06 Jun. 12 498.6 2200 5.9
MIPS 70 05 Dec. 08/06 Jun. 12 498.6 2880 16
MIPS 160 05 Dec. 08/06 Jun. 12 498.6 2700 40
WIRC J 1.250 2008 Apr. 2426 31.5 950 1.3
WIRC H 1.635 2008 Apr. 2426 31.5 950 1.2
WIRC Ks 2.150 2008 Apr. 2426 41.0 950 1.4

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