J/MNRAS/396/1231ivo://CDS.VizieR/J/MNRAS/396/1231doi:10.26093/cds/vizier.73961231CDSRejkuba M.Mouhcine M.Ibata R.2024-07-08T20:15:57Z2009-12-23T05:39:33ZCDS support team

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

cds-question@unistra.frgalaxieshst-photometrygalaxy-classification-systemsWe present deep VI images obtained with the Advanced Camera for Surveys on board the Hubble Space Telescope, covering three fields in the north-east side of the edge-on disc galaxy NGC 891. The observed fields span a wide range of galactocentric distances along the eastern minor axis, extending from the plane of the disc to 12kpc, and out to ~25kpc along the major axis. The photometry of individual stars reaches ~2.5mag below the tip of the red giant branch. We use the astrophotometric catalogue to probe the stellar content and metallicity distribution across the thick disc and spheroid of NGC 891.2009MNRAS.396.1231Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/396/1231CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/396/1231https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/396/1231http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/396/1231https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/396/1231https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/396/1231http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/396/1231GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/396/1231/table2 (Astrophotometric catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/396/1231/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/396/1231/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/396/1231/table2?GETtext/xml+votable180.050000true35.6462742.3089750.005555555555555556Cone search capability for table J/MNRAS/396/1231/table1 (The observing log)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/396/1231/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/396/1231/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/396/1231/table1?GETtext/xml+votable180.050000true35.677916742.32833330.0055555555555555566/2409https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/396/1231?format=asciiOpticaldefaultJ/MNRAS/396/1231/table2Astrophotometric cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSequential numbermeta.recordintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedVmagV magnitude (1)magphot.mag;em.opt.Rfloate_Vmagrms uncertainty on Vmag (1)magstat.error;phot.mag;em.opt.Vfloatf_Vmag[0/7] Bad or saturated pixels in V (3)meta.codeintImagI magnitude (1)magphot.mag;em.opt.Ifloate_Imagrms uncertainty on Imag (1)magstat.error;phot.mag;em.opt.Ifloatf_Imag[0/7] Bad or saturated pixels in I (3)meta.codeintchiChi value of the PSF fit (good if chi<=1.5)stat.fit.chi2;instr.det.psf;meta.modelledfloatS/NSignal-to-noise ratiostat.snrfloatSharpSharpness parameter [-0.3/0.3 is good] (4)stat.fit.paramfloatRoundRoundness parameter (4)stat.fit.paramfloatCrowdCrowding parameter (4)magstat.fit.paramfloatType[1/2] Object type (2)src.class.starGalaxyintField[1/32] Field (H1, H2, H3 or overlap 12 or 23)meta.id;obs.fieldintJ/MNRAS/396/1231/table1The observing logrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameField namemeta.id;obs.fieldcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainDateObservation datetime.epoch;obsnullableFilterFilter (F606W or F814W)meta.id;instr.filtercharExpTimeExposure timestime.duration;obs.exposurechar