J/A+A/597/A41ivo://CDS.VizieR/J/A+A/597/A41doi:10.26093/cds/vizier.35970041CDSGonzalez-Lopez J.Bauer F.E.Romero-Canizales C.Kneissl R.,Villard E.Carvajal R.Kim S.Laporte N.Anguita T.Aravena M.,Bouwens R.J.Bradley L.Carrasco M.Demarco R.Ford H.Ibar E.,Infante L.Messias H.Munoz Arancibia A. M.Nagar N.Padilla N.,Treister E.Troncoso P.Zitrin A.2016-12-21T07:56:52Z2016-12-21T08:55:39ZCDS support team

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

cds-question@unistra.frradio-galaxiesinterferometryradio-continuum-emissionDusty star-forming galaxies are among the most prodigious systems at high redshift (z>1), characterized by high star-formation rates and huge dust reservoirs. The bright end of this population has been well characterized in recent years, but considerable uncertainties remain for fainter dusty star-forming galaxies, which are responsible for the bulk of star formation at high redshift and thus play a key role in galaxy growth and evolution. In this first paper of our series, we describe our methods for finding high redshift faint dusty galaxies using millimeter observations with ALMA. We obtained ALMA 1.1mm mosaic images for three strong-lensing galaxy clusters from the Frontier Fields Survey, which constitute some of the best studied gravitational lenses to date. The ~2'x2' mosaics overlap with the deep HST WFC3/IR footprints and encompass the high magnification regions of each cluster for maximum intrinsic source sensitivity. The combination of extremely high ALMA sensitivity and the magnification power of these clusters allows us to systematically probe the sub-mJy population of dusty star-forming galaxies over a large surveyed area. We present a description of the reduction and analysis of the ALMA continuum observations for the galaxy clusters Abell 2744 (z=0.308), MACS J0416.1-2403 (z=0.396) and MACS J1149.5+2223 (z=0.543), for which we reach observed rms sensitivities of 55, 59 and 71uJy/beam respectively. We detect 12 dusty star-forming galaxies at S/N>=5.0 across the three clusters, all of them presenting coincidence with near-infrared detected counterparts in the HST images. None of the sources fall close to the lensing caustics, thus they are not strongly lensed. The observed 1.1mm flux densities for the total sample of galaxies range from 0.41 to 2.82mJy, with observed effective radii spanning <~0.05" to 0.37"+/-0.21". The lensing-corrected sizes of the detected sources appear to be in the same range as those measured in brighter samples, albeit with possibly larger dispersion.2017A&A...597A..41Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/597/A41CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/443/1549 : MACSJ0416.1-2403 strong-lensing analysis (Jauzac+, 2014)J/MNRAS/444/268 : HST Frontier Fields clusters (Richard+, 2014)J/ApJS/211/21 : Spectroscopic redshifts of galaxies in MACS (Ebeling+, 2014)J/ApJ/800/18 : HST/WFC3 obs. of z~7-8 galaxies in A2744 (Atek+, 2015)J/ApJ/811/29 : GLASS. IV. Lensing cluster Abell 2744 (Wang+, 2015)J/MNRAS/452/1437 : Abell 2744 strong-lensing analysis (Jauzac+, 2015)J/ApJS/224/33 : CLASH-VLT: the FF cluster MACSJ0416.1-2403 (Balestra+, 2016)J/A+A/590/A31 : ASTRODEEP Frontier Fields Catalogues (Merlin+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/597/A41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/597/A41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/597/A41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/597/A41https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/597/A41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/597/A41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/597/A41/table3 (ALMA detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A41/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A41/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A41/table3?GETtext/xml+votable180.050000true3.5825-30.38546110.005555555555555556Cone search capability for table J/A+A/597/A41/table6 (Counterpart galaxies separation properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A41/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A41/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A41/table6?GETtext/xml+votable180.050000true3.582524167-30.3854470560.005555555555555556Cone search capability for table J/A+A/597/A41/list (List of fitsd images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A41/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A41/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A41/list?GETtext/xml+votable180.050000true3.58832-30.397260.0055555555555555566/16486 28448 347931.8058623843283312e-22 1.8058623843283312e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/597/A41?format=asciiRadiodefaultJ/A+A/597/A41/table3ALMA detectionsIDSource ID (Cluster-IDNN)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Centroid right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Centroid declination sign (J2000)pos.eq.dec;meta.maine_RAJ2000Positional error of RAarcsecstat.error;pos.eq.rafloate_DEJ2000Positional error of DEarcsecstat.error;pos.eq.decfloatSNDetection signal-to-noisestat.snrfloatSpeakPeak intensity per beam at 1.1mmmJy/beamphot.flux;em.mm.200-400GHz;instr.beamfloate_Speak1 sigma error of peak intensitymJy/beamstat.errorfloatJ/A+A/597/A41/table4Flux density estimatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource ID (Cluster-IDNN)meta.id;meta.maincharFPsIntegrated flux density at 1.1mm assuming a PS modelmJyphot.flux.density;em.mm.200-400GHzfloate_FPs1 sigma error of FPsmJystat.errorfloatFExtIntegrated flux density at 1.1mm assuming a 6-parameter extended Gaussian model (EXT)mJyphot.flux.density;em.mm.200-400GHzfloate_FExt1 sigma error of FExtmJystat.errorfloatChi2PsReduced chi^2^/DOF for PS modelmeta.notefloatChi2ExtReduced chi^2^/DOF for EXT modelmeta.notefloatFuvFitIntegrated flux density at 1.1mm using UV-FITmJyphot.flux.density;em.mm.200-400GHzfloate_FuvFit1 sigma error of FuvFitmJystat.errorfloatJ/A+A/597/A41/table5Source parameters and magnification propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource ID (Cluster-IDNN)meta.id;meta.maincharrsEffective radiusarcsecphys.angSizefloate_rsEffective radius errorarcsecstat.errorfloatqThe axial ratiophys.size.axisRatiofloate_qThe axial ratio errorstat.errorfloatphiThe position angle in degrees east of northdegpos.posAnginte_phiThe position angle errordegstat.errorintmuMagnification valuephot.flux;arith.ratiofloatE_muMagnification value positive errorstat.error;stat.maxfloate_muMagnification value negative errorstat.errorfloatrsmuDemagnified effective radiusarcsecphys.angSizefloatE_rsmuDemagnified effective radius positive errorarcsecstat.error;stat.maxfloate_rsmuDemagnified effective radius negative errorarcsecstat.errorfloatFuvmuDemagnified flux densitymJyphot.flux.density;em.mm.200-400GHzfloatE_FuvmuDemagnified flux density positive errormJystat.error;stat.maxfloate_FuvmuDemagnified flux density negative errormJystat.errorfloatExt[0/2] Extended emission classification (1)meta.code.classintJ/A+A/597/A41/table6Counterpart galaxies separation propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource ID (Cluster-IDNN)meta.id;meta.maincharRAJ2000Centroid right ascension for NIR counterpart (J2000)pos.eq.ra;meta.mainDEJ2000Centroid declination for NIR counterpart (J2000)pos.eq.dec;meta.maine_RAJ2000Positional error of RA for NIR counterpartarcsecstat.error;pos.eq.rafloate_DEJ2000Positional error of DEC for NIR counterpartarcsecstat.error;pos.eq.decfloatIpoffOffset measured in the image planearcsecpos;arith.difffloate_IpoffOffset measured in the image plane errorarcsecstat.errorfloatSpoffOffset measured in the source plane errorarcsecpos;arith.difffloate_SpoffOffset measured in the source plane errorarcsecstat.errorfloatJ/A+A/597/A41/listList of fitsd imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.DateObservation date (YYYY-MM-DDThh:mm:ss.ssssss)time.epoch;obscharFreqObserved frequencyGHzem.freqfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar