J/AJ/122/598ivo://CDS.VizieR/J/AJ/122/598doi:10.26093/cds/vizier.51220598CDSDawson S.Stern D.Bunker A.J.Spinrad H.Dey A.2023-04-06T16:50:46Z2002-07-20T19:05:39ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryredshiftedWe present a catalog of 74 galaxies detected serendipitously during a campaign of spectroscopic observations of the Hubble Deep Field North (HDF) and its environs. Among the identified objects are five candidate Ly{alpha} emitters at z>~5, a galaxy cluster at z=0.85, and a Chandra source with a heretofore undetermined redshift of z=2.011. We report redshifts for 25 galaxies in the central HDF, 13 of which had no prior published spectroscopic redshift. Of the remaining 49 galaxies, 30 are located in the single-orbit HDF flanking fields. We discuss the redshift distribution of the serendipitous sample, which contains galaxies in the range 0.10<z<5.77 with a median redshift of z=0.85, and we present strong evidence for redshift clustering. By comparing our spectroscopic redshifts with optical/IR photometric studies of the HDF, we find that photometric redshifts are in most cases capable of producing reasonable predictions of galaxy redshifts. Finally, we estimate the line-of-sight velocity dispersion and the corresponding mass and expected X-ray luminosity of the galaxy cluster, we present strong arguments for interpreting the Chandra source as an obscured active galactic nucleus, and we discuss in detail the spectrum of one of the candidate z>~5 Ly{alpha} emitters.2001AJ....122..598Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/122/598CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/364/517 : HDF-N spiral and irregular galaxies (Rodighiero+, 2000)J/AJ/120/2206 : NTT, HDF-S and HDF-N photometric redshifts (Fontana+, 2000)J/ApJ/538/29 : HDF-N Caltech faint galaxy redshift survey. X. (Cohen+, 2000)J/AJ/121/2895 : HDF-N Caltech faint galaxy redshift survey. XIII. (Cohen 2001)J/ApJ/554/742 : Chandra Deep Survey of the HDF-N (Hornschemeier+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/122/598https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/122/598http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/122/598https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/122/598https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/122/598http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/122/598GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/122/598/table1 (Serendipitously detected galaxies in central HDF)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/122/598/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/122/598/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/122/598/table1?GETtext/xml+votable180.050000true189.191062562.223836110.005555555555555556Cone search capability for table J/AJ/122/598/table2 (Serendipitously detected galaxies outside central HDF)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/122/598/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/122/598/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/122/598/table2?GETtext/xml+votable180.050000true189.07487562.276388890.0055555555555555566/11252https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/122/598?format=asciiOpticaldefaultJ/AJ/122/598/table1Serendipitously detected galaxies in central HDFrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number (1)meta.id;meta.maincharn_IDIndividual notes, detailed in "notes.dat"meta.notecharl_ImagLimit flag on Imagmeta.code.errorcharImag? I_814_ magnitude from Williams et al. (1996, Cat. <J/AJ/12/1335>)magphot.mag;em.opt.IfloatnullableRAJ2000[12] Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000[62] Declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatu_zUncertainty flag on zmeta.code.errorcharSC[1/5] Spectral categories (3)src.spTypeintRefsReferences, separated by comma, table1 only (4)meta.refcharLocLocation, table2 only (5)meta.notecharComComments (6)meta.notecharJ/AJ/122/598/table2Serendipitously detected galaxies outside central HDFrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number (1)meta.id;meta.maincharn_IDIndividual notes, detailed in "notes.dat"meta.notecharl_ImagLimit flag on Imagmeta.code.errorcharImag? I_814_ magnitude from Williams et al. (1996, Cat. <J/AJ/12/1335>)magphot.mag;em.opt.IfloatnullableRAJ2000[12] Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000[62] Declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatu_zUncertainty flag on zmeta.code.errorcharSC[1/5] Spectral categories (3)src.spTypeintRefsReferences, separated by comma, table1 only (4)meta.refcharLocLocation, table2 only (5)meta.notecharComComments (6)meta.notecharJ/AJ/122/598/notesIndividual notesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoteNote numbermeta.notecharTextText of the notemeta.notechar