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Fig. 2


Herschel/SPIRE 250 μm, Spitzer/IRAC 3.6 μm, PdBI 2 mm continuum, JVLA 5 GHz continuum, PdBI CO(6–5) line emission, and JVLA CO(1–0) line emission contours (in red) overlaid, from left to right and from top to bottom, on the HST/ACS F814W multiple images B, C, D, and E of MACSJ0032-arc. The contribution of the counter-image F is negligible. X refers to a galaxy member of the lensing cluster. Contour levels start at 2σ and are spaced in steps of 1σ, expect for IRAC 3.6 μm where the contours are in steps of 9, 16, 25, 36, 49σ, etc. The SPIRE detection extends beyond the multiple images B, C, D, and E, as shown in Fig. 1, but peaks at 4σ over B, C, D, and E. The rms levels of the 2 mm, 5 GHz, CO(6–5), and CO(1–0) data are 57 μJy, 1.7 μJy, 93 mJy km s-1, and 6.2 mJy km s-1, respectively. The size and orientation of the beam are indicated by the dotted (PdBI) or filled (JVLA) red ellipse in the bottom right corner.

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