Project C2

Project leaders: Bertoldi, Frank (AIfA); Riechers, Dominik (PH1)

Project C2 complements project C1 by measuring the dust-obscured fraction of star formation in galaxies at high redshift. By probing to three times lower luminosities and over larger areas than Herschel, it will trace the star formation history of the universe and find the most massive starburst galaxies in the universe. While C1 focuses on in-depth studies of key samples of galaxies, C2 pro- vides the necessary context by studying large, comprehensive statistical samples of hundreds of thousands of galaxies and their environments, addressing potential effects of sample and cosmic variance. In particular, these studies will: (1) lead to robust constraints on the the luminosities of bright submillimeter sources from z = 1 out to z > 5; (2) statistically constrain the cosmic star formation history out to z ∽ 5; (3) study the impact of environment on the population of high luminosity dusty star-forming galaxies; (4) reveal their evolutionary link to today’s ellipticals; (5) study “exotic” sources, such as protoclusters and strongly lensed sources. This will be achieved by deploying unprecedentedly large, multi-color (sub-)millimeter cameras on the most powerful single-dish survey telescopes at these wavelengths, in particular the newly-constructed CCAT-prime observatory, in which we are a major partner.

References

  1. An, Simpson, Smail, Swinbank, Ma, Liu, 33 co-authors including, and Bertoldi, “Multi-wavelength Prop- erties of Radio- and Machine-learning-identified Counterparts to Submillimeter Sources in S2COSMOS”, ApJ 886, 48 (2019).
  2. Aravena, Decarli, Walter, Da Cunha, 30 co-authors including, Riechers, Weiss, and Bertoldi, “The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Continuum Number Counts, Resolved 1.2 mm Extragalactic Background, and Properties of the Faintest Dusty Star-forming Galaxies”, ApJ833, 68 (2016).
  3. Bertoldi, Carilli, Aravena, Schinnerer, Voss, Smolcic, Jahnke, Scoville, et al., “COSBO: The MAMBO 1.2 Millimeter Imaging Survey of the COSMOS Field”, ApJS 172, 132 (2007).
  4. Bussmann, Riechers, Fialkov, Scudder, Hayward, Cowley, Bock, Calanog, et al., “HerMES: ALMA Imaging of Herschel-selected Dusty Star-forming Galaxies”, ApJ 812, 43 (2015).
  5. Choi, Austermann, Basu, Battaglia, Bertoldi, Chung, Cothard, Duff, et al., “Sensitivity of the Prime-Cam Instrument on the CCAT-Prime Telescope”, Journal of Low Temperature Physics 199, 1089 (2020).
  6. Gómez-Guijarro, Riechers, Pavesi, Magdis, Leung, Valentino, Toft, Aravena, et al., “Confirming Her- schel Candidate Protoclusters from ALMA/VLA CO Observations”, ApJ 872, 117 (2019).
  7. Magnelli, Boogaard, Decarli, Gónzalez-López, 23 co-authors including, Bertoldi, Riechers, and Weiss, “The ALMA Spectroscopic Survey in the HUDF: The Cosmic Dust and Gas Mass Densities in Galaxies up to z ⇠ 3”, ApJ 892, 66 (2020).
  8. Riechers, Bradford, Clements, Dowell, Pérez-Fournon, Ivison, Bridge, Conley, et al., “A dust-obscured massive maximum-starburst galaxy at a redshift of 6.34”, Nature 496, 329 (2013).
  9. Riechers, Leung, Ivison, Pérez-Fournon, Lewis, Marques-Chaves, Oteo, Clements, et al., “Rise of the Titans: A Dusty, Hyper-luminous “870 μm Riser” Galaxy at z ⇠ 6”, ApJ 850, 1 (2017).
  10. Walter, Carilli, Neeleman, Decarli, Popping, Somerville, Aravena, Bertoldi, et al., “The Evolution of the Baryons Associated with Galaxies Averaged over Cosmic Time and Space”, ApJ 902, 111 (2020).