ALMA twenty-six arcmin(2) survey of GOODS-S at one millimeter (ASAGAO): Source catalog and number countsHatsukade, B., Kohno, K., Yamaguchi, Y., Umehata, H., Ao, Y., Aretxaga, I., Caputi, K. I., Dunlop, J. S., Egami, E., Espada, D., Fujimoto, S., Hayatsu, N. H., Hughes, D. H., Ikarashi, S., Iono, D., Ivison, R. J., Kawabe, R., Kodama, T., Lee, M., Matsuda, Y., Nakanishi, K., Ohta, K., Ouchi, M., Rujopakarn, W., Suzuki, T., Tamura, Y., Ueda, Y., Wang, T., Wang, W-H., Wilson, G. W., Yoshimura, Y. & Yun, M. S., Dec-2018, In : Publications of the Astronomical Society of Japan. 70, 6, 20 p., 105.
Research output: Contribution to journal › Article › Academic › peer-review
We present the survey design, data reduction, construction of images, and source catalog of the Atacama Large Millimeter/submillimeter Array (ALMA) twenty-six arcmin(2) survey of GOODS-S at one millimeter (ASAGAO). ASAGAO is a deep (1 sigma depth similar to 61 mu Jy beam(-1) for a 250 k lambda-tapered map with a synthesized beam size of 0.'' 51 x 0.'' 45) and wide area (26 arcmin(2)) survey on a contiguous field at 1.2 mm. By combining with ALMA archival data in the GOODS-South field, we obtained a deeper map in the same region (1 sigma size similar to 30 mu Jy beam(-1) for a deep region with a 250 k lambda-taper, and a synthesized beam size of 0.'' 59 x 0.'' 53), providing the largest sample of sources (25 sources at >= 5.0 sigma, 45 sources at >= 4.5 sigma) among ALMA blank-field surveys to date. The number counts shows that 52(-8)(+11)% of the extragalactic background light at 1.2 mm is resolved into discrete sources at S-1.2 mm > 135 mu Jy. We create infrared (IR) luminosity functions (LFs) in the redshift range of z = 1-3 from the ASAGAO sources with K-s-band counterparts, and constrain the faintest luminosity of the LF at 2.0 <z <3.0. The LFs are consistent with previous results based on other ALMA and SCUBA-2 observations, which suggest a positive luminosity evolution and negative density evolution with increasing redshift. We find that obscured star-formation of sources with IR luminosities of log (L-IR/L-circle dot) greater than or similar to 11.8 account for approximate to 60%-90% of the z similar to 2 cosmic star-formation rate density.
|Number of pages||20|
|Journal||Publications of the Astronomical Society of Japan|
|Publication status||Published - Dec-2018|
- cosmology: observations, galaxies: evolution, galaxies: formation, galaxies: high-redshift, submillimeter: galaxies, DEGREE EXTRAGALACTIC SURVEY, COSMOLOGY LEGACY SURVEY, OBSCURED STAR-FORMATION, SPECTROSCOPIC SURVEY, LUMINOSITY FUNCTION, SUBMILLIMETER MAPS, REDSHIFT SURVEY, SIMPLE-MODEL, FIELD, GALAXIES