J/A+A/622/A106ivo://CDS.VizieR/J/A+A/622/A106doi:10.26093/cds/vizier.36220106CDSManjon-Garcia A.Herranz D.Diego J.M.Bonavera L.Gonzalez-Nuevo J.2020-11-04T15:48:49Z2019-02-05T06:36:11ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsinfrared-sourcesphotometryWe present a new catalog of high-redshift candidate Herschel sources. Our sample is obtained after applying a multifrequency filtering method (matched multifilter), which is designed to improve the signal-to-noise ratio (SNR) of faint extragalactic point sources. The method is tested against already-detected sources from the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) and used to search for new high-redshift candidates. The multifilter technique produces also an estimation of the photometric redshift of the sources. When compared with a sample of sources with known spectroscopic redshift, the photometric redshift returned from the multifilter is unbiased in the redshift range 0.8<z<4.3. Using simulated data we reproduce the same unbiased result in roughly the same redshift range and determined the error (and bias above z=4) in the photometric redshifts. Based on the multifilter technique, and a selection based on color, flux, and agreement of fit between the observed photometry and assumed SED, we find 370 robust candidates to be relatively bright high-redshift sources. A second sample with 237 objects focuses on the faint end at high-redshift. These 237 sources were previously near the H-ATLAS detection limit but are now confirmed with our technique as high significance detections. Finally, we look for possible lensed Herschel sources by cross-correlating the first sample of 370 objects with two different catalogs of known low-redshift objects, the redMaPPer Galaxy Cluster Catalog and a catalog of galaxies with spectroscopic redshift from the Sloan Digital Sky Survey Data Release 14. Our search renders a number of candidates to be lensed systems from the SDSS cross-correlation but none from the redMaPPeR confirming the more likely galactic nature of the lenses.2019A&A...622A.106Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/622/A106CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/462/3146 : Herschel-ATLAS DR1 (Valiante+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/622/A106https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/622/A106http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/622/A106https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/622/A106https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/622/A106http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/622/A106GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/622/A106/500riser (Photometric and astrometric parameters for 237 candidates to 500 um-risers)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/622/A106/500riser?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/622/A106/500riser?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/622/A106/500riser?GETtext/xml+votable180.050000true128.497830.835740.005555555555555556Cone search capability for table J/A+A/622/A106/robustz (Photometric and astrometric parameters for 370 candidates to high redshift sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/622/A106/robustz?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/622/A106/robustz?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/622/A106/robustz?GETtext/xml+votable180.050000true127.712681.540280.0055555555555555565/2569 2575 2586 2598 4115 5463 6399 6486 6489-6492 6512 6571 6742 6826 7028 11736 6/4096-4097 4099-4100 4105-4107 8224 10254-10255 10257-10261 10263 10266 10269-10274 10280-10282 10285-10290 10292 10294 10296 10298-10299 10313-10315 10337 10339-10340 10342-10343 10348 10369 10371 10373-10374 10376 10382 10385 10388 10391 10403 10406-10407 10410-10414 10418 10421 10423-10424 10428 10430 10434-10437 10439-10440 10444-10446 10449-10450 10452 10454 10456-10458 10464-10465 10467-10468 10753 10756-10758 10768 10772 16403 16405 16409 16414 16421-16422 16426-16427 16431 16434-16436 16438 16441 16443-16444 16446-16447 16449-16451 16453 16455-16456 16458 16466-16469 16471 16473-16474 16477-16479 16481-16484 16487 16489 16512 16517 16520-16522 16524 16531 16535-16536 16544 16547 16549-16550 16643 16646 16648 21840-21841 21844 21846-21847 21849-21851 21861 21863 21873-21878 21880 25591 25593-25595 25911 25915 25917-25918 25932 25934 25937-25942 25950-25951 25954-25955 25972 25974 25977-25978 26001 26004-26005 26014 26052-26053 26056-26057 26060 26250-26252 26254-26255 26266 26272-26274 26276-26277 26279 26281 26288 26290-26291 26950-26951 26956 26958 26961-26965 26983 26992 27279 27290-27291 27297-27301 27303 27308 27310-27314 27320-27321 27324 27648 27650 27656 28027 28031 28101 28117 28119-28120 28148 35572 35576 35578 35580-35581 35635-35636 35638 35642 35645 35647 35656 35682 35690 35694 35716 35718 35720 35722-35723 35726-35727 35729-35730 35732 35734 35737 35741-35743 35745-35746 35748-35749 35751-35752 35755 35757-35758 35765 35784 40957 40959 46549 46551 46553 46555-46556 46559 46567 46573 46576 46580-46581 46584 46586 46871 46876 46879 46893 46914 46917-46918 46921-46922 46924-46925 46932 46934 46937 46939 46948 46950 46960 469973.972892068905477e-22 7.945784137810954e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/622/A106?format=asciiInfrareddefaultJ/A+A/622/A106/500riserPhotometric and astrometric parameters for 237 candidates to 500 um-risersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHATLASH-ATLAS IAU Source identification, HATLAS JHHMMSS.s+DDMMSS (H-ATLAS)meta.id;meta.maincharIDFieldH-ATLAS Short Source identification GNN.DRN.NNNNN (ID_Field)meta.idcharRAJ2000Right Ascension (J2000.0) (RAJ2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0) (DEJ2000)degpos.eq.dec;meta.mainF250MMF250um flux estimated from MMF (F250_MMF)mJyphot.flux.density;em.mm.750-1500GHzdoublee_F250MMF250um 1 sigma flux error estimated from MMF (E250_MMF)mJystat.errordoubleF350MMF350um flux estimated from MMF (F350_MMF)mJyphot.flux.density;em.mm.750-1500GHzdoublee_F350MMF350um 1 sigma flux error estimated from MMF (E350_MMF)mJystat.errordoubleF500MMF500um flux estimated from MMF (F500_MMF)mJyphot.flux.density;em.mm.400-750GHzdoublee_F500MMF500um 1 sigma flux error estimated from MMF (E500_MMF)mJystat.errordoubleSNRMMFSignal to noise ratio at 250um estimated from MMF (SNR_MMF)stat.snrdoublezphMMFPhotometric redshift estimated from MMF (z_photo_MMF)src.redshift.photdoublee_zphMMFPhotometric redshift error estimated from simulations with MMF (ez_photo_MMF)stat.errordoubleF250SPIRE250um flux from H-ATLAS catalog (F250_SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloate_F250SPIRE250um 1 sigma flux error from H-ATLAS catalog (E250_SPIRE)mJystat.errorfloatSNR250SPIRESignal to noise ratio at 250um (SNR250_SPIRE)stat.snrdoubleF350SPIRE350um flux from H-ATLAS catalog (F350_SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloate_F350SPIRE350um 1 sigma flux error from H-ATLAS catalog (E350_SPIRE)mJystat.errorfloatSNR350SPIRESignal to noise ratio at 350um (SNR350_SPIRE)stat.snrdoubleF500SPIRE500um flux from H-ATLAS catalog (F500_SPIRE)mJyphot.flux.density;em.mm.400-750GHzfloate_F500SPIRE500um 1 sigma flux error from H-ATLAS catalog (E500_SPIRE)mJystat.errorfloatSNR500SPIRESignal to noise ratio at 500um (SNR500_SPIRE)stat.snrdoublezsp? Spectroscopic redshift from H-ATLAS catalog (z_spec)src.redshiftdoublenullableRel? Confidence label after performing a chi-squared analysis considering PACS fluxes (Reliability) (1)meta.code.qualintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/622/A106/robustzPhotometric and astrometric parameters for 370 candidates to high redshift sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHATLASH-ATLAS IAU Source identification, HATLAS JHHMMSS.s+DDMMSS (H-ATLAS)meta.id;meta.maincharIDFieldH-ATLAS Short Source identification GNN.DRN.NNNNN (ID_Field)meta.idcharRAJ2000Right Ascension (J2000.0) (RAJ2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0) (DEJ2000)degpos.eq.dec;meta.mainF250MMF250um flux estimated from MMF (F250_MMF)mJyphot.flux.density;em.mm.750-1500GHzdoublee_F250MMF250um 1 sigma flux error estimated from MMF (E250_MMF)mJystat.errordoubleF350MMF350um flux estimated from MMF (F350_MMF)mJyphot.flux.density;em.mm.750-1500GHzdoublee_F350MMF350um 1 sigma flux error estimated from MMF (E350_MMF)mJystat.errordoubleF500MMF500um flux estimated from MMF (F500_MMF)mJyphot.flux.density;em.mm.400-750GHzdoublee_F500MMF500um 1 sigma flux error estimated from MMF (E500_MMF)mJystat.errordoubleSNRMMFSignal to noise ratio at 250um estimated from MMF (SNR_MMF)stat.snrdoublezphMMFPhotometric redshift estimated from MMF (z_photo_MMF)src.redshift.photdoublee_zphMMFPhotometric redshift error estimated from simulations with MMF (ez_photo_MMF)stat.errordoubleF250SPIRE250um flux from H-ATLAS catalog (F250_SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloate_F250SPIRE250um 1 sigma flux error from H-ATLAS catalog (E250_SPIRE)mJystat.errorfloatSNR250SPIRESignal to noise ratio at 250um (SNR250_SPIRE)stat.snrdoubleF350SPIRE350um flux from H-ATLAS catalog (F350_SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloate_F350SPIRE350um 1 sigma flux error from H-ATLAS catalog (E350_SPIRE)mJystat.errorfloatSNR350SPIRESignal to noise ratio at 350um (SNR350_SPIRE)stat.snrdoubleF500SPIRE500um flux from H-ATLAS catalog (F500_SPIRE)mJyphot.flux.density;em.mm.400-750GHzfloate_F500SPIRE500um 1 sigma flux error from H-ATLAS catalog (E500_SPIRE)mJystat.errorfloatSNR500SPIRESignal to noise ratio at 500um (SNR500_SPIRE)stat.snrdoublezsp? Spectroscopic redshift from H-ATLAS catalog (z_spec)src.redshiftdoublenullableRel? Confidence label after performing a chi-squared analysis considering PACS fluxes (Reliability) (1)meta.code.qualintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar