The A2C2S will measure the C+ and far-infrared (FIR) continuum emission for a representative sample of 122 main sequence star-forming galaxies spectroscopically confirmed at 4 < z < 6, with SFR > ~10 M_Sun/yr and stellar mass ~9 < log(Mstar) < ~11. The A2C2S data are crucial to understanding the gas and dust properties at a time of rapid galaxy maturation.
References : Le Fèvre et al. (2020, survey design), Béthermin et al. (2020, ALMA data), and Faisst et al. (2020, ancillary data).