ALMA twenty-six arcmin2 survey of GOODS-S at one millimeter (ASAGAO): Source catalog and number counts

PASJ: Publications of the Astronomical Society of Japan

Dunlop, James S¹  Ueda, Yoshihiro²  Tamura, Yoichi⁴  Ivison, Rob J⁵  Wang, Tao⁶  Ouchi, Masami⁷  Kawabe, Ryohei⁷  Fujimoto, Seiji⁸  Ohta, Kouji⁸  Iono, Daisuke⁹  Ao, Yiping^1,10  Kohno, Kotaro^1,10  Umehata, Hideki^1,10  Hatsukade, Bunyo^1,10  Egami, Eiichi^1,11  Kodama, Tadayuki^1,11  Espada, Daniel^1,12  Lee, Minju^1,12  Rujopakarn, Wiphu^1,13  Wang, Wei-Hao^1,13  Yoshimura, Yuki^1,13  Hughes, David H^1,13  Matsuda, Yuichi^1,13  Caputi, Karina I^1,14  Aretxaga, Itziar^1,15  Yamaguchi, Yuki^1,16  Nakanishi, Kouichiro^1,17  Wilson, Grant W^1,17  Yun, Min S^1,17  Ikarashi, Soh^1,17  Suzuki, Tomoko^1,17  Hayatsu, Natsuki H^1,18 

[1] Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, 8 Yuanhua Road, Nanjing 210034, China;Astronomical Institute, Tohoku University, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan;Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan;Department of Astronomy, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan;European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching, Germany;Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, UK;Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan;Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan;Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE), Luis Enrique Erro 1, Sta. Ma. Tonantzintla, Puebla, Mexico;Kapteyn Astronomical Institute, University of Groningen, P.O. Box 800, 9700AV Groningen, The Netherlands;National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan;Purple Mountain Observatory &RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan;Research Center for the Early Universe, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan;SOKENDAI (The Graduate University for Advanced Studies), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan;Steward Observatory, University of Arizona, 933 N. Cherry Ave, Tucson, AZ 85721, USA

关键词: galaxies: evolution;    galaxies: formation;    galaxies: high-redshift;    cosmology: observations;    submillimeter: galaxies;   

DOI  :  10.1093/pasj/psy104

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

We present the survey design, data reduction, construction of images, and source catalog of the Atacama Large Millimeter/submillimeter Array (ALMA) twenty-six arcmin2 survey of GOODS-S at one millimeter (ASAGAO). ASAGAO is a deep (1 σ depth ∼ 61 μJy beam−1 for a 250 kλ-tapered map with a synthesized beam size of 0|${^{\prime\prime}_{.}}$|51 × 0|${^{\prime\prime}_{.}}$|45) and wide area (26 arcmin2) 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 σ depth ∼ 30 μJy beam−1 for a deep region with a 250 kλ-taper, and a synthesized beam size of 0|${^{\prime\prime}_{.}}$|59 × 0|${^{\prime\prime}_{.}}$|53), providing the largest sample of sources (25 sources at ≥5.0 σ, 45 sources at ≥4.5 σ) among ALMA blank-field surveys to date. The number counts show that |$52^{+11}_{-8}$|% of the extragalactic background light at 1.2 mm is resolved into discrete sources at S1.2 mm > 135 μJy. We create infrared (IR) luminosity functions (LFs) in the redshift range of |$z$| = 1–3 from the ASAGAO sources with Ks-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 (LIR/L⊙) ≳ 11.8 account for ≈60%–90% of the |$z$| ∼ 2 cosmic star-formation rate density.

【 授权许可】

CC BY