@article{fe69bbf7d29a46518b58b826ef899d4c,
title = "Red, redder, reddest: SCUBA-2 imaging of colour-selected Herschel sources",
abstract = "High-redshift, luminous, dusty star-forming galaxies (DSFGs) constrain the extremity of galaxy formation theories. The most extreme are discovered through follow-up on candidates in large area surveys. Here, we present extensive 850 μm SCUBA-2 follow-up observations of 188 red DSFG candidates from the Herschel Multitiered Extragalactic Survey (HerMES) LargeMode Survey, covering 274 deg2.We detected 87 per cent with a signal-to-noise ratio > 3 at 850 μm. We introduce a new method for incorporating the confusion noise in our spectral energy distribution fitting by sampling correlated flux density fluctuations from a confusion limited map. The new 850 μm data provide a better constraint on the photometric redshifts of the candidates, with photometric redshift errors decreasing from σz/(1 + z) ≈ 0.21 to 0.15. Comparison spectroscopic redshifts also found little bias (〈(z-zspec)/(1+zspec)〉 = 0.08). The mean photometric redshift is found to be 3.6 with a dispersion of 0.4 and we identify 21 DSFGs with a high probability of lying at z > 4. After simulating our selection effects we find number counts are consistent with phenomenological galaxy evolution models. There is a statistically significant excess of WISE-1 and SDSS sources near our red galaxies, giving a strong indication that lensing may explain some of the apparently extreme objects. Nevertheless, our sample includes examples of galaxies with the highest star formation rates in the Universe (≫103 M⊙ yr-1).",
keywords = "Galaxies: High-redshift, Galaxies: Starburst, Infrared: Galaxies, Submillimetre: Galaxies",
author = "S. Duivenvoorden and S. Oliver and Scudder, {J. M.} and J. Greenslade and Riechers, {D. A.} and Wilkins, {S. M.} and V. Buat and Chapman, {S. C.} and Clements, {D. L.} and A. Cooray and Coppin, {K. E.K.} and H. Dannerbauer and {De Zotti}, G. and Dunlop, {J. S.} and Eales, {S. A.} and A. Efstathiou and D. Farrah and Geach, {J. E.} and Holland, {W. S.} and Hurley, {P. D.} and Ivison, {R. J.} and L. Marchetti and G. Petitpas and Sargent, {M. T.} and D. Scott and M. Symeonidis and M. Vaccari and Vieira, {J. D.} and L. Wang and J. Wardlow and M. Zemcov",
note = "Funding Information: This project has received funding from the European Unions Horizon 2020 research and innovation programme under grant agreement No. 607254; this publication reflects only the authors view and the European Union is not responsible for any use that may be made of the information contained therein. SD acknowledges support from the Science and Technology Facilities Council (grant number ST/M503836/1). SO and JMS acknowledge support from the Science and Technology Facilities Council (grant number ST/L000652/1). JMS acknowledges the support from the PATT travel grant. DAR acknowledges support from the National Science Foundation under grant number AST-1614213 to Cornell University. JW is supported by an STFC Ernest Rutherford fellowship, and acknowledges additional support from a European Union COFUND/Durham Junior Research Fellowship under EU grant agreement number 609412, and from STFC (ST/L00075X/1). HD acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) under the 2014 Ram?n yCajal programMINECORYC-2014-15686.KEKCacknowledges support from the Science and Technology Facilities Council (grant number ST/M001008/1). MTS was supported by a Royal Society Leverhulme Trust Senior Research Fellowship (LT150041). The James ClerkMaxwellTelescope is operated by the East Asian Observatory on behalf of The NationalAstronomical Observatory of Japan, Academia Sinica Institute of Astronomy and Astrophysics, the Korea Astronomy and Space Science Institute, the National Astronomical Observatories of China, and the Chinese Academy of Sciences (Grant No. XDB09000000), with additional funding support from the Science and Technology Facilities Council of the United Kingdom and participating universities in the United Kingdom and Canada. The Herschel spacecraftwas designed, built, tested, and launched under a contract to ESA managed by the Herschel/Planck Project team by an industrial consortium under the overall responsibility of the prime contractor Thales Alenia Space (Cannes), and including Astrium (Friedrichshafen) responsible for the payload module and for system testing at spacecraft level, Thales Alenia Space (Turin) responsible for the service module, and Astrium (Toulouse) responsible for the telescope, with in excess of a hundred subcontractors SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including University of Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, University of Sussex (UK); and Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC, UKSA (UK); and NASA (USA). Funding Information: The James Clerk Maxwell Telescope is operated by the East Asian Observatory on behalf of The National Astronomical Observatory of Japan, Academia Sinica Institute of Astronomy and Astrophysics, the Korea Astronomy and Space Science Institute, the National Astronomical Observatories of China, and the Chinese Academy of Sciences (Grant No. XDB09000000), with additional funding support from the Science and Technology Facilities Council of the United Kingdom and participating universities in the United Kingdom and Canada. Funding Information: The Herschel spacecraft was designed, built, tested, and launched under a contract to ESA managed by the Herschel/Planck Project team by an industrial consortium under the overall responsibility of the prime contractor Thales Alenia Space (Cannes), and including Astrium (Friedrichshafen) responsible for the payload module and for system testing at spacecraft level, Thales Alenia Space (Turin) responsible for the service module, and Astrium (Toulouse) responsible for the telescope, with in excess of a hundred subcontractors SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including University of Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, University of Sussex (UK); and Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC, UKSA (UK); and NASA (USA). Funding Information: This project has received funding from the European Unions Horizon 2020 research and innovation programme under grant agreement No. 607254; this publication reflects only the authors view and the European Union is not responsible for any use that may be made of the information contained therein. SD acknowledges support from the Science and Technology Facilities Council (grant number ST/M503836/1). SO and JMS acknowledge support from the Science and Technology Facilities Council (grant number ST/L000652/1). JMS acknowledges the support from the PATT travel grant. DAR acknowledges support from the National Science Foundation under grant number AST-1614213 to Cornell University. JW is supported by an STFC Ernest Rutherford fellowship, and acknowledges additional support from a European Union COFUND/Durham Junior Research Fellowship under EU grant agreement number 609412, and from STFC (ST/L00075X/1). HD acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) under the 2014 Ram{\'o}n y Cajal program MINECO RYC-2014-15686. KEKC acknowledges support from the Science and Technology Facilities Council (grant number ST/M001008/1). MTS was supported by a Royal Society Leverhulme Trust Senior Research Fellowship (LT150041). Publisher Copyright: {\textcopyright} 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.",
year = "2018",
month = jun,
day = "11",
doi = "10.1093/mnras/sty691",
language = "English (US)",
volume = "477",
pages = "1099--1119",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",
}