J/MNRAS/312/442ivo://CDS.VizieR/J/MNRAS/312/442doi:10.26093/cds/vizier.73120442CDSSullivan M.Treyer M.A.Ellis R.S.Bridges T.J.Milliard B.Donas J.2024-06-26T20:16:24Z2001-01-20T22:53:01ZCDS support team

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

cds-question@unistra.frultraviolet-photometryredshiftedspectroscopyWe present further spectroscopic observations for a sample of galaxies selected in the vacuum ultraviolet (UV) at 2000{AA} from the FOCA balloon-borne imaging camera of Milliard et al. (1992A&A...257...24M). This work represents an extension of the initial study by Treyer et al. (Cat. <J/MNRAS/300/303>). Our enlarged catalogue contains 433 sources (~3 times as many as in our earlier study) across two FOCA fields. 273 of these are galaxies, nearly all with redshifts z~0-0.4. Nebular emission-line measurements are available for 216 galaxies, allowing us to address issues of excitation, reddening and metallicity. The UV and H{alpha} luminosity functions strengthen our earlier assertions that the local volume-averaged star formation rate is higher than indicated from earlier surveys. Moreover, internally within our sample, we do not find a steep rise in the UV luminosity density with redshift over 0<z<0.4. Our data are more consistent with a modest evolutionary trend, as suggested by recent redshift survey results. Investigating the emission-line properties, we find no evidence for a significant number of AGN in our sample; most UV-selected sources to z~0.4 are intense star-forming galaxies.2000MNRAS.312..442Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/312/442CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/300/303 : UV-selected galaxy redshift survey (Treyer+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/312/442https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/312/442http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/312/442https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/312/442https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/312/442http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/312/442GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/312/442/table7 (The updated UV-z catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/312/442/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/312/442/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/312/442/table7?GETtext/xml+votable180.050000true197.228472429.54432780.0055555555555555565/2595 6/10404-10405 28249 28251 282549.932213243108895e-19 9.932213243108895e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/312/442?format=asciiUVOpticaldefaultJ/MNRAS/312/442/table7The updated UV-z cataloguez? Redshiftsrc.redshiftfloatnullableComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSampleSample name (1)obs.fieldcharOC[1-3] Number of optical counterparts (2)meta.numberintRA1950Right ascension (1950) (3)pos.eq.ra;meta.mainDE1950Declination (1950) (3)pos.eq.dec;meta.mainUVUV (around 200nm) magnitudemagphot.mag;em.UV.200-300nmfloatEW[OII]? [O II] rest-frame equivalent width0.1nmspect.line.eqWidthfloatnullableEW(Ha)? H{alpha} rest-frame equivalent width0.1nmspect.line.eqWidth;em.line.HalphafloatnullableEW(Hb)? H{beta} rest-frame equivalent width0.1nmspect.line.eqWidth;em.line.HbetafloatnullableType? Galaxy T type (4)src.morph.typeintnullableUVMag? Absolute UV magnitudemagphys.magAbsfloatnullable(UV-B)0? Rest-frame- and dust-corrected (UV-B) colour indexmagphot.color;em.UV;em.optfloatnullable_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