J/MNRAS/436/1919ivo://CDS.VizieR/J/MNRAS/436/1919doi:10.26093/cds/vizier.74361919CDSCasey C.M.Chen C.-C.Cowie L.L.Barger A.J.Capak P.Ilbert O.,Koss M.Lee N.Le Floc'h E.Sanders D.B.Williams J.P.2024-08-07T20:11:56Z2014-12-02T14:01:15ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesmillimeter-astronomysubmillimeter-astronomyWe present deep 450{mu}m and 850{mu}m observations of a large, uniformly covered 394arcmin^2^ area in the Cosmic Evolution Survey (COSMOS) field obtained with the Scuba-2 instrument on the James Clerk Maxwell Telescope (JCMT). We achieve root-mean-square noise values of {sigma}_450_=4.13mJy and {sigma}_850_=0.80mJy. The differential and cumulative number counts are presented and compared to similar previous works. Individual point sources are identified at >3.6{sigma} significance, a threshold corresponding to a 3-5% sample contamination rate. We identify 78 sources at 450{mu}m and 99 at 850{mu}m, with flux densities S_450_=13-37mJy and S_850_=2-16mJy. Only 62-76% of 450{mu}m sources are 850{mu}m detected and 61-81% of 850{mu}m sources are 450{mu}m detected. The positional uncertainties at 450{mu}m are small (1-2.5 arcsec) and therefore allow a precise identification of multiwavelength counterparts without reliance on detection at 24{mu}m or radio wavelengths; we find that only 44% of 450{mu}m sources and 60% of 850{mu}m sources have 24{mu}m or radio counterparts. 450{mu}m selected galaxies peak at <z>=1.95+/-0.19 and 850{mu}m selected galaxies peak at <z>=2.16+/-0.11. The two samples occupy similar parameter space in redshift and luminosity, while their median SED peak wavelengths differ by ~20-50{mu}m (translating to {Delta}T_dust_=8-12K, where 450{mu}m selected galaxies are warmer). The similarities of the 450{mu}m and 850{mu}m populations, yet lack of direct overlap between them, suggests that submillimetre surveys conducted at any single far-infrared wavelength will be significantly incomplete (>~30%) at censusing infrared-luminous star formation at high z.2013MNRAS.436.1919Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/436/1919CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/436/1919https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/436/1919http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/436/1919https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/436/1919https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/436/1919http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/436/1919GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/436/1919/table1 (*450um sources identified >3.6{sigma} point sources in COSMOS field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/436/1919/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/436/1919/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/436/1919/table1?GETtext/xml+votable180.050000true150.1191672.5336110.005555555555555556Cone search capability for table J/MNRAS/436/1919/table2 (*850um sources identified >3.6{sigma} point sources in COSMOS field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/436/1919/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/436/1919/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/436/1919/table2?GETtext/xml+votable180.050000true150.0333332.4366670.005555555555555556Cone search capability for table J/MNRAS/436/1919/table4 (*Marginal 3<{sigma}<3.6 450um identified sources with 850um >3{sigma} counterparts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/436/1919/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/436/1919/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/436/1919/table4?GETtext/xml+votable180.050000true150.1291672.4641670.005555555555555556Cone search capability for table J/MNRAS/436/1919/cparts (Counterpart identifications and multiwavelength properties for Scuba-2 detected sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/436/1919/cparts?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/436/1919/cparts?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/436/1919/cparts?GETtext/xml+votable180.050000true150.11916672.53361110.0055555555555555566/272589.276497240453405e-25 5.517906024225661e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/436/1919?format=asciiInfraredRadiodefaultJ/MNRAS/436/1919/table1*450um sources identified >3.6{sigma} point sources in COSMOS fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMMSMM name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharN450Short name for source at 450um (450.NN)meta.idcharprimaryRAJ2000Right ascension at 450um (J2000)pos.eq.ra;meta.mainDEJ2000Declination at 450um (J2000)pos.eq.dec;meta.mainS/N[3.6/7.8] Signal-to-noise ratio at 450umstat.snrfloatS450rRaw 450um flux density (G1)mJyphot.flux.density;em.mm.400-750GHzfloate_S450rrms uncertainty on S450rmJystat.errorfloatS450dDeboosted 450um flux density (G2)mJyphot.flux.density;em.mm.400-750GHzfloate_S450drms uncertainty on S450dmJystat.errorfloatePos90% confidence interval for positional uncertaintyarcsecstat.fit.paramfloatl_PcontLimit flag on Pcontmeta.code.errorcharPcont[0/0.11] Probability of contamination (G3)stat.fit.goodnessfloatu_N850[(] Uncertainty flag on 850um cross-identificationmeta.code.errorcharN850Short name for 850um counterpart (850.NN) (G4)meta.idcharOff? Offset between 450 and 850um sourcesarcsecpos;arith.difffloatnullableS850r? Raw flux density at 850um (G1)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850r? rms uncertainty on S850rmJystat.errorfloatnullableS850d? Deboosted flux density at 850um (G2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850d? rms uncertainty on S850dmJystat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/436/1919/table2*850um sources identified >3.6{sigma} point sources in COSMOS fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMMSMM name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharN850Short name for source at 850um (850.NN)meta.idcharprimaryRAJ2000Right ascension at 850um (J2000)pos.eq.ra;meta.mainDEJ2000Declination at 850um (J2000)pos.eq.dec;meta.mainS/N[3.6/21] Signal-to-noise ratio at 850umstat.snrfloatS850rRaw 850um flux density (G1)mJyphot.flux.density;em.mm.200-400GHzfloate_S850rrms uncertainty on S850rmJystat.errorfloatS850dDeboosted 850um flux density (G2)mJyphot.flux.density;em.mm.200-400GHzfloate_S850drms uncertainty on S850dmJystat.errorfloatePos90% confidence interval for positional uncertaintyarcsecstat.fit.paramfloatl_PcontLimit flag on Pcontmeta.code.errorcharPcont[0/0.15] Probability of contamination (G3)stat.fit.goodnessfloatu_N450[(] Uncertainty flag on 450um cross-identificationmeta.code.errorcharN450Short name for 450um counterpart (450.NN) (G4)meta.idcharOff? Offset between 450 and 850um sourcesarcsecpos;arith.difffloatnullableS450r? Raw flux density at 450um (G1)mJyphot.flux.density;em.mm.400-750GHzfloatnullablee_S450r? rms uncertainty on S450rmJystat.errorfloatnullablel_S450dLimit flag on S450dmeta.code.errorcharS450d? Deboosted flux density at 450um (G2)mJyphot.flux.density;em.mm.400-750GHzfloatnullablee_S450d? rms uncertainty on S450dmJystat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/436/1919/table4*Marginal 3<{sigma}<3.6 450um identified sources with 850um >3{sigma} counterpartsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSMMSMM name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharN850Short name for source at 850um (850.NNN) (1)meta.idcharprimaryN450Short name for source at 450um (450.NNN) (1)meta.idcharprimaryOffOffset between 450 and 850um centroidsarcsecpos;arith.difffloatRAJ2000Right ascension at 450um (J2000)pos.eq.ra;meta.mainDEJ2000Declination at 450um (J2000)pos.eq.dec;meta.mainS/N850Signal-to-noise ratio at 850umstat.snrfloatS/N450Signal-to-noise ratio at 450umstat.snrfloatS450rRaw 450um flux density (G1)mJyphot.flux.density;em.mm.400-750GHzfloate_S450rrms uncertainty on S450rmJystat.errorfloatS450dDeboosted 450um flux density (G2)mJyphot.flux.density;em.mm.400-750GHzfloate_S450drms uncertainty on S450dmJystat.errorfloatS850rRaw 850um flux density (G1)mJyphot.flux.density;em.mm.200-400GHzfloate_S850rrms uncertainty on S850rmJystat.errorfloatS850dDeboosted 850um flux density (G2)mJyphot.flux.density;em.mm.200-400GHzfloate_S850drms uncertainty on S850dmJystat.errorfloatePos90% confidence interval for positional uncertaintyarcsecstat.fit.paramfloatJ/MNRAS/436/1919/cpartsCounterpart identifications and multiwavelength properties for Scuba-2 detected sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRSimbad column added by the CDSmeta.id;meta.datasetintnullableN450Short name N450meta.idcharN850Short name N850 (table6)meta.idcharn_N850[*] multiple possible counterparts (1)meta.notecharm_N850Conterpart number/total (NA for not analysed)meta.code.multipcharpvalue[0/0.5]? Probability of non-associationstat.fit.goodnessdoublenullableRA24? Right ascension at 24um (J2000)pos.eq.ranullableDE24? Declination at 24um (J2000)pos.eq.decnullabled24[0/3.2]? Offset of 24um source with respect to the Scuba-2 450um or 850um positionarcsecpos.angDistancefloatnullableS24? Spitzer/MIPS Flux density at 24umuJyphot.flux.density;em.IR.15-30umintnullablee_S24? rms uncertainty on S24umuJystat.errorintnullablen_S24[*] Note on 24um flux (2)meta.notecharRA1? Right ascension at 1.4GHz (J2000)pos.eq.ranullableDE1? Declination at 1.4GHz (J2000)pos.eq.decnullabled1.4[0/2.7]? Offset of 1.4GHz source with respect to the Scuba-2 450um or 850um positionarcsecpos.angDistancefloatnullableS1.4GHz? Flux density at 1.4GHzuJyphot.flux.density;em.radio.750-1500MHzintnullablee_S1.4GHz? rms uncertainty on S1.4GHzuJystat.errorintnullableOpt[*] Note on optical counterpart (3)spect.dopplerVeloc.opt;em.optcharRAO? Optical Right ascension (J2000)pos.eq.ranullableDEO? Optical Declination (J2000)pos.eq.decnullabledOpt[0/6.8]? Offset of optical source with respect to the Scuba-2 450um or 850um positionarcsecpos.angDistancefloatnullableimag? i magnitude (AB) (4)magphot.mag;em.opt.Ifloatnullablen_imag[*] Note on imag (5)meta.notechar[3.6]? 3.6um magnitude (AB) (4)magphot.mag;em.IR.3-4umfloatnullablen_[3.6][*] Note on [3.6] (5)meta.notecharzph? Photometric redshiftsrc.redshiftfloatnullable_RASub-millimeter position from tables 1, 2 or 4, with the exception of 450.103 = 850.128 for which the optical position is reported (right ascension part)degpos.eq.ra;meta.main_DESub-millimeter position from tables 1, 2 or 4, with the exception of 450.103 = 850.128 for which the optical position is reported (declination part)degpos.eq.dec;meta.mainJ/MNRAS/436/1919/table8*Identification of Scuba-2 sources at 870um-1.2mmSimbadNameSimbad column added by the CDSmeta.idcharN450450um namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintN850850um namemeta.idcharANameAlternate namemeta.id;meta.maincharn_AName[*] * indicates sources that correspond to multiple Scuba-2 sources (1)meta.notecharlamObserved wavelength {lambda}mmem.wlfloatSlam? Deboosted flux density at {lambda}mJyphot.fluxfloatnullablee_Slam? rms uncertainty on SlammJystat.errorfloatnullableInt[Y] Interferometric observation?meta.codecharInstInstrumentmeta.id;instrcharRefReference (2)meta.ref;pos.framecharJ/MNRAS/436/1919/table9Physical characteristics of Scuba-2 selected galaxieszphPhotometric redshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintN450Short name for source at 450um (450.NNN)meta.idcharN850Short name for source at 850um (850.NNN)meta.idcharE_zphError on zph (upper value)stat.error;stat.maxfloate_zphError on zph (lower value)stat.errorfloatchi2Fit chi^2^ valuestat.fit.chi2;stat.fit.param;meta.modelledfloatLIRInfrared luminosity (1)solLumphys.luminosity;em.IRdoubleE_LIRError on LIR (upper value)solLumstat.error;stat.maxdoublee_LIRError on LIR (lower value)solLumstat.errordoublelogSFR1Infrared star formation rate (1)log(solMass.yr**-1)meta.id;meta.mainfloate_logSFR1rms uncertainty on logSFR1log(solMass.yr**-1)stat.errorfloatn_lam.p[f] f for fixed value (2)meta.notecharlam.pPeak wavelength (1)umem.wl;stat.maxfloate_lam.p? rms uncertainty on lam.pumstat.errorfloatnullableMdust? Dust mass (1)solMassphys.massfloatnullableE_Mdust? Error on Mdust (upper value)solMassstat.error;stat.maxfloatnullablee_Mdust? Error on Mdust (lower value)solMassstat.errorfloatnullablelogSFR2Ultraviolet star formation rate (Le Phare properties)log(solMass.yr**-1)meta.idfloatE_logSFR2Error on logSFR2 (upper value)log(solMass.yr**-1)stat.error;stat.maxfloate_logSFR2Error on logSFR2 (lower value)log(solMass.yr**-1)stat.errorfloatM*Stellar mass (Le Phare properties)solMassphys.massfloatE_M*Error on M* (upper value)solMassstat.error;stat.maxfloate_M*Error on M* (lower value)solMassstat.errordouble