SXDF-ALMA 2 arcmin$^2$ Deep Survey: 1.1-mm Number Counts

Understand

We report 1.1 mm number counts revealed with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey Field (SXDF).

• The advent of ALMA enables us to reveal millimeter-wavelength number counts down to the faint end without source confusion.
• However, previous studies are based on the ensemble of serendipitously-detected sources in fields originally targeting different sources and could be biased due to the clustering of sources around the targets.
• We derive number counts in the flux range of 0.2-2 mJy by using 23 (>=4sigma) sources detected in a continuous 2.0 arcmin$^2$ area of the SXDF.