Unbiased surveys of dust-enshrouded galaxies using ALMA

Author:

K. Kohno, S. Fujimoto, A. Tsujita, V. Kokorev, G. Brammer, G. E. Magdis, F. Valentino, N. Laporte, Fengwu Sun, E. Egami, F. E. Bauer, A. Guerrero, N. Nagar, K. I. Caputi, G. B. Caminha, J. -B. Jolly, K. K. Knudsen, R. Uematsu, Y. Ueda, M. Oguri, A. Zitrin, M. Ouchi, Y. Ono, J. Gonzalez-Lopez, J. Richard, I. Smail, D. Coe, M. Postman, L. Bradley, A. M. Koekemoer, A. M. Munoz Arancibia, M. Dessauges-Zavadsky, D. Espada, H. Umehata, B. Hatsukade, F. Egusa, K. Shimasaku, K. Matsui-Morokuma, W. -H. Wang, T. Wang, Y. Ao, A. J. Baker, Minju M. Lee, C. del P. Lagos, D. H. Hughes, ALCS collaboration

Keyword:

Astrophysics, Astrophysics of Galaxies, Astrophysics of Galaxies (astro-ph.GA)

journal:

date:

2023-05-23 16:00:00

Abstract

The ALMA lensing cluster survey (ALCS) is a 96-hr large program dedicated to uncovering and characterizing intrinsically faint continuum sources and line emitters with the assistance of gravitational lensing. All 33 cluster fields were selected from HST/Spitzer treasury programs including CLASH, Hubble Frontier Fields, and RELICS, which also have Herschel and Chandra coverages. The total sky area surveyed reaches $\sim$133 arcmin$^2$ down to a depth of $\sim$60 $\mu$Jy beam$^{-1}$ (1$\sigma$) at 1.2 mm, yielding 141 secure blind detections of continuum sources and additional 39 sources aided by priors. We present scientific motivation, survey design, the status of spectroscopy follow-up observations, and number counts down to $\sim$7 $\mu$Jy. Synergies with JWST are also discussed.

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