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Table 1

PSF FWHM and depths of the dataset.

Image PSF FWHM (′′) Limiting AB magnitude PSF FWHM (′′) Limiting AB magnitude

A2744 Cluster A2744 Parallel

ACS B435 0.11 28.58 0.12 28.97
ACS V606 0.11 28.71 0.15 29.06
ACS I814 0.13 29.03 0.13 29.17
WFC3 Y105 0.18 29.15 0.19 29.30
WFC3 J125 0.19 28.83 0.19 28.88
WFC3 JH140 0.19 28.93 0.20 28.91
WFC3 H160 0.20 29.11 0.20 29.06
Hawk-I Ks 2.146 0.38 26.13 0.38 26.12
IRAC 3.6 1.66 24.83 1.66 24.83
IRAC 4.5 1.72 24.87 1.72 24.87

M0416 Cluster M0416 Parallel

ACS B435 0.12 28.86 0.13 28.81
ACS V606 0.16 28.97 0.13 28.83
ACS I814 0.16 29.31 0.18 29.19
WFC3 Y105 0.18 29.22 0.18 29.28
WFC3 J125 0.19 28.90 0.18 29.05
WFC3 JH140 0.20 28.95 0.19 29.12
WFC3 H160 0.20 29.01 0.20 29.14
Hawk-I Ks 2.146 0.38 26.18 0.38 26.26
IRAC 3.6 1.66 25.04 1.66 25.11
IRAC 4.5 1.72 25.05 1.72 24.89

Notes. Limiting magnitudes of HST images have been computed as the magnitudes within 2 × FWHMH160 (=0.2′′) circular apertures of 5σ sources, measured with SExtractor on PSF-matched images. Hawk-I and IRAC limiting magnitudes have been obtained computing in each pixel and taking the mode of the distributions (Aaper is the area of a circular region with radius raper,Ks = 0.4′′,raper,IRAC1 = 1.66′′,raper,IRAC2 = 1.72′′).

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