J/ApJ/695/580ivo://CDS.VizieR/J/ApJ/695/580doi:10.26093/cds/vizier.16950580CDSBresolin F.Ryan-Weber E.Kennicutt R.C.Goddard Q.2017-06-12T08:24:53Z2011-05-10T10:34:34ZCDS support team

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

cds-question@unistra.frchemical-abundancesh-ii-regionsgalaxiesvisible-astronomyspectroscopyultraviolet-astronomyWe have obtained deep multiobject optical spectra of 49 HII regions in the outer disk of the spiral galaxy M83 (=NGC 5236) with the FORS2 spectrograph at the Very Large Telescope. The targets span the range in galactocentric distance between 0.64 and 2.64 times the R_25_ isophotal radius (5.4-22.3kpc), and 31 of them are located at R>R_25_, thus belonging to the extreme outer disk of the galaxy, populated by UV complexes revealed recently by the Galaxy Evolution Explorer satellite. In order to derive the nebular chemical abundances, we apply several diagnostics of the oxygen abundance, including R_23_, [NII]/[OII], and the [OIII]{lambda}4363 auroral line, which was detected in four HII regions.2009ApJ...695..580Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/695/580CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/136/479 : IRAC observations of M83 extended UV disk (Dong+, 2008)J/ApJS/173/538 : XUV-Disk galaxies in the Local Universe (Thilker+, 2007)J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+,J/A+A/415/155 : Oxygen abundances in the Galactic disk (Bensby+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/695/580https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/695/580http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/695/580https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/695/580https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/695/580http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/695/580GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/695/580/sample (HII region sample and reddening-corrected fluxes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/695/580/sample?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/695/580/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/695/580/sample?GETtext/xml+votable180.050000true203.9862917-29.94369440.0055555555555555566/43881https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/695/580?format=asciiUVOpticaldefaultJ/ApJ/695/580/sampleHII region sample and reddening-corrected fluxesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDHII region numbermeta.id;obs.fieldintR/R25Galactocentric distance in units of R_25_=6.44arcminpos.distance;pos.galactocentric;arith.ratiofloatXUV? Gil de Paz et al. identification (2007ApJ...661..115G) (<[GMB2007] NGC 5236 XUV NN> in Simbad)meta.id.crossintnullableF[OII]? [OII]3727 line flux in units of H{beta}=100phot.fluxintnullablee_F[OII]? [OII]3727 uncertaintystat.errorintnullableF[OIII]Flux of [OIII]5007 line in units of H{beta}=100phot.fluxinte_F[OIII]Uncertainty of [OIII]5007stat.errorintF[NII]Flux of [NII]6583 line in units of H{alpha}=286phot.fluxinte_F[NII]Uncertainty of [NII]6583stat.errorintF[SII]Flux of [SII]6717+6731 lines in units of H{alpha}=286phot.fluxinte_F[SII]Uncertainty of [SII]6717+6731stat.errorintF[ArIII]? Flux of [ArIII]7135 in units of H{alpha}=286phot.fluxfloatnullablee_F[ArIII]? Uncertainty of [ArIII]7135stat.errorfloatnullableFHbetaH{beta} line flux in erg/s/cm^2^ (1)mW.m**-2phot.fluxdoublec(Hb)Extinction value (1)magphys.absorptionfloatSimbadSimbad column added by the CDScharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.main