J/MNRAS/477/1099ivo://CDS.VizieR/J/MNRAS/477/1099doi:10.26093/cds/vizier.74771099CDSDuivenvoorden S.Oliver S.Scudder J.M.Greenslade J.Riechers D.A.,Wilkins S.M.Buat V.Chapman S.C.Clements D.L.Cooray A.,Coppin K.E.K.Dannerbauer H.De Zotti G.Dunlop J.S.Eales S.A.,Efstathiou A.Farrah D.Geach J.E.Holland W.S.Hurley P.D.,Ivison R.J.Marchetti L.Petitpas G.Sargent M.T.Scott D.,Symeonidis M.Vaccari M.Vieira J.D.Wang L.Wardlow J.Zemcov M.2024-08-18T20:18:54Z2020-04-15T09:51:13ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesinfrared-sourcesmillimeter-astronomyphotometrysubmillimeter-astronomyredshiftedHigh-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 850um SCUBA-2 follow-up observations of 188 red DSFG candidates from the Herschel Multitiered Extragalactic Survey (HerMES) Large Mode Survey, covering 274deg^2^. We detected 87% with a signal-to-noise ratio >3 at 850um. 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 850um data provide a better constraint on the photometric redshifts of the candidates, with photometric redshift errors decreasing from {sigma}_z_/(1+z)~0.21 to 0.15. Comparison spectroscopic redshifts also found little bias (<(z-z_spec_)/(1+z_spec_)>=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 (>>10^3^M_{sun}_/yr).2018MNRAS.477.1099Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/477/1099CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+, 1998)VIII/103 : Herschel Multi-tiered Extragalactic Survey (HerMES+, 2012)VIII/95 : Herschel Multi-tiered Extragalactic Survey (Oliver+, 2012)V/139 : The SDSS Photometric Catalog, Release 9 (Ahn, 2012)VII/279 : SDSS quasar catalog: twelfth data release (Paris+, 2017)J/MNRAS/372/1621 : SCUBA Half-Degree Extragalactic Survey. II (Coppin+, 2006)J/ApJ/663/81 : SED of hard X-ray selected AGN in XMDS (Polletta+, 2007)J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)J/ApJ/707/1201 : LABOCA ECDFS Submillimeter Survey (LESS) (Weiss+, 2009)J/MNRAS/411/505 : Sub-mm observations in Extended Chandra DFS (Chapin+, 2011)J/ApJ/761/140 : Spectroscopy of Herschel-SPIRE galaxies (Casey+, 2012)J/A+A/551/A100 : Panchromatic SED of Herschel sources (Berta+, 2013)J/MNRAS/429/3047 : Observational parameters of SMGs programme (Bothwell+, 2013)J/ApJ/768/91 : ALMA observations of LESS submm galaxies (Hodge+, 2013)J/ApJ/812/43 : ALMA 870um obs. of HerMES galaxies (Bussmann+, 2015)J/MNRAS/462/1989 : HerMES Large Mode Survey catalogue (Asboth+, 2016)J/ApJ/832/78 : SCUBA-2 & LABOCA obs. of HATLAS galaxies (Ivison+, 2016)J/MNRAS/465/1789 : SCUBA-2 Cosmology Legacy Survey (Geach+, 2017)J/MNRAS/465/3558 : HATLAS candidate lensed galaxies (Negrello+, 2017)J/A+A/614/A33 : 500{mu}m-risers sources (Donevski+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/477/1099https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/477/1099http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/477/1099https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/477/1099https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/477/1099http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/477/1099GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/477/1099/tablea1 (Flux densities with instrumental errors, redshifts, and luminosities of our targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/477/1099/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/477/1099/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/477/1099/tablea1?GETtext/xml+votable180.050000true11.041251.3063890.0055555555555555565/4528 6/17278 17303 17335 17341-17343 17346-17347 17354 17356 17359 17361 17365 17367 17370-17372 17375 17377-17382 17386 17391-17393 17395 17401 17404-17405 17965 17978-17979 18021 18023 18025-18026 18035 18039 18043-18044 18047 18055 18060-18061 18065-18066 18070-18071 18075-18078 18092 18094 18096 18099 18101-18104 18107-18109 18116-18117 18119-18121 18124-18125 18128 18130 18133 18135 18139 18142-18144 18146 18150-18151 18161 18163-18164 18168 18216 18304 18705-18707 18710 18712-18713 18715-18716 18718-18719 18741 18743 18752-18754 18756 18760-18762 18764-18765 18768 18777-18778 18789 18791 18797 18805 19457-19458 19460 19462 19465 19474 19476 19479 19481 19483 19485 195202.232294361788794e-22 9.264782775159061e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/477/1099?format=asciiInfraredMillimeterdefaultJ/MNRAS/477/1099/tablea1Flux densities with instrumental errors, redshifts, and luminosities of our targetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHerMESHerMES source name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharIDHELMS_RED number from Asboth+, 2016, J/MNRAS/462/1989 (<[ACS2016] HELMS RED NNN> for Simbad)meta.idcharS250[18/141] Herschel/SPIRE 250um flux densitymJyphot.flux.density;em.mm.750-1500GHzfloate_S250[5/8] S250 uncertaintymJystat.errorfloatS350[31/167] Herschel/SPIRE 350um flux densitymJyphot.flux.density;em.mm.750-1500GHzfloate_S350[5/7] S350 uncertaintymJystat.errorfloatS500[63/192] Herschel/SPIRE 250um flux densitymJyphot.flux.density;em.mm.400-750GHzfloate_S500[6/9] S500 uncertaintymJystat.errorfloatS850[6/83] SCUBA-2 850um flux densitymJyphot.flux.density;em.mm.200-400GHzfloate_S850[3/7] S850 uncertaintymJystat.errorfloatzphot[2.8/5.2] Photometric redshiftsrc.redshiftfloatE_zphot[0.5/1] Positive uncertainty on zphotstat.error;stat.maxfloate_zphot[0.5/1] Negative uncertainty on zphotstat.errorfloatlogLfir[13/14] log of FIR luminositylog(solLum)phys.luminosity;em.IRfloatE_logLfir[0.07/0.2] Positive uncertainty on logLfirlog(solLum)stat.error;stat.maxfloate_logLfir[0.09/0.3] Negative uncertainty on logLfirlog(solLum)stat.errorfloat_RAPositions from HerMES names (right ascension part)degpos.eq.ra;meta.main_DEPositions from HerMES names (declination part)degpos.eq.dec;meta.main