Multiwavelength images of ASXDF1100.053.1. Top right: RGB image (R, G, and B being 1100, 500, and 350 μm, respectively) around ASXDF1100.053.1. Yellow circles mark AzTEC 1100 μm sources. First and second rows from top: ALMA, AzTEC, SPIRE, PACS, and Spitzer images. The black circle marks the AzTEC position of ASXDF1100.053.1 and the beam size of the AzTEC/ASTE image (30″). The red cross marks the ALMA position of ASXDF1100.053.1. The small cyan circle marks the position of a Spitzer and Herschel bright source near ASXDF1100.053.1. Third and fourth rows from top: Jansky VLA, ALMA, IRAC, UKIRT, and Subaru images of ASXDF1100.053.1. The blue circle marks the ALMA position of ASXDF1100.053.1.