SED of source s11, a suspected background galaxy. Black pluses, blue circles, and red circles represent optical/near-IR, Spitzer, and AKARI data, respectively. Wavelength error bars correspond to the filter widths. The scatter in the optical and near-IR photometry is likely due to mismatching of sources, as foreground optical sources may lie directly along the sightline to the galaxy. Four other sources from the galaxy locus in Figure  3 are also shown (green diamonds, purple triangles, orange squares, and blue asterisks), plotted with offset fluxes for visual clarity. The SED of s11 resembles that of the other four background galaxies.