J/AJ/109/2376ivo://CDS.VizieR/J/AJ/109/2376doi:10.26093/cds/vizier.51092376CDSSalzer J.J.Moody J.W.Rosenberg J.L.Gregory S.A.Newberry M.V.2023-04-06T16:50:11Z1998-09-30T09:33:34ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryccd-photometryradial-velocityWe present CCD imaging and spectroscopic data for 176 blue and/or emission-line galaxies from Lists I and II of the Case Northern Sky Survey. Our sample consists of all Case galaxies which lie in the region which overlaps the original Slice of the Universe survey. We use the observational data to investigate the physical properties of the galaxies selected by the surveys to compare with various parameters published in the survey lists, and to investigate the selection characteristics and completeness limit of the survey. The majority of the Case galaxies are energized by regions of active star formation; only 5% of the sample are Seyfert galaxies. The dual selection techniques used (both UV-excess and emission lines) allow the survey to detect star-forming galaxies with a wide range of properties and evolutionary states. In particular, the Case survey selects galaxies with lower levels of activity than most previous surveys. The survey also includes a larger fraction of intermediate and low-luminosity galaxies than would be present in a purely magnitude-limited sample. Although galaxies as faint as m_B_=19 are present in the sample, the completeness limit of the UV-excess selected portion of the survey is closer to m_B_=16. The luminosity function of the Case galaxies is derived and compared with that of the "normal" field galaxies in the same volume of space. The shape of the Case luminosity function is similar to that for the field sample. A surprising result is that 31% of the field galaxy population can be accounted for by galaxies of the type selected in the Case survey.1995AJ....109.2376Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/109/2376CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/109/2376https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/109/2376http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/109/2376https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/109/2376https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/109/2376http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/109/2376GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/109/2376/table2 (The Case galaxies-sample properties.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/109/2376/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/109/2376/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/109/2376/table2?GETtext/xml+votable180.050000true132.7197232.017260.0055555555555555565/1322 7129 6/4607 4927 4942-4943 4945 4948-4949 4953 4955-4957 4961 4966 4968 4973 5011 5013 5021 5023 5057-5059 5181 5183 5201 5203-5206 5209-5213 5220-5221 5223 5227 5230-5231 5233 5263 5267 5272 5275 5286-5287 5293 5295-5297 5299-5300 5376-5377 5380 5634-5636 5640 10754 10756 10760 28159 28413 28415 28478-28479 28493 28495 28499-28500 28503 28505-28507 28509 28511 28513-28515 28521-28523 28527-28528 28530 28563-28564 28567 28569-28570 28572 28574 28579 28582-28585 28587 28589 28592-28594 28608-28610 28612 28616https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/109/2376?format=asciiOpticaldefaultJ/AJ/109/2376/table2The Case galaxies-sample properties.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCGCase Survey numbermeta.id;meta.mainintRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainl_VmagLimit flag on Vmagmeta.code.errorcharVmagApparent magnitude estimatemagphot.mag;em.optintSpCode[bmswyv ?] Spectral code (1)meta.codecharBmagB magnitudemagphot.mag;em.opt.Bfloatn_Bmag[#] Note on Bmag (2)meta.notecharr_BmagReference for B magnitude (3)meta.ref;pos.frameintDiamA? Angular diameterarcsecphys.angSizeintnullableRV? Radial velocity corrected to the velocity centroid of the local groupkm/sspect.dopplerVeloc;pos.lgintnullableBMAG? Absolute B magnitudemagphys.magAbs;em.opt.BfloatnullableDiamL? Linear diameterkpcpos.distancefloatnullableNamesOther names (4)meta.idcharNote[*] Individual note (5)meta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed