J/MNRAS/451/3173ivo://CDS.VizieR/J/MNRAS/451/3173doi:10.26093/cds/vizier.74513173CDSAlvarez-Alvarez M.Diaz A.I.Terlevich E.Terlevich R.2024-08-15T20:13:50Z2016-04-22T14:33:55ZCDS support team

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

cds-question@unistra.frgalaxiesstellar-associationsinfrared-photometryvisible-astronomybroad-band-photometryline-intensitiesWe present photometry in U, B, V, R and I continuum bands and in H{alpha} and H{beta} emission lines for a sample of 336 circumnuclear star-forming regions located in early-type spiral galaxies with different levels of activity in their nuclei. They are nearby galaxies, with distances less than 100Mpc, 60 per cent of which are considered as interacting objects. This survey of 20 nuclear rings aims to provide insight into their star formation properties as age, stellar population and star formation rate. Extinction-corrected H{alpha} luminosities range from 1.3x10^38^ to 4x10^41^erg/s, with most of the regions showing values between 39.5<=logL_H{alpha}_<=40, which implies masses for the ionizing clusters higher than 2x10^5^M_{sun}_. H{alpha} and H{beta} images have allowed us to obtain an accurate measure of extinction. We have found an average value of A_V_=1.85 mag. (U-B) colour follows a two maximum distribution around (U-B)=~-0.7, and -0.3; (R-I) also presents a bimodal behaviour, with maximum values of 0.6 and 0.9. Reddest (U-B) and (R-I) regions appear in non-interacting galaxies. Reddest (R-I) regions lie in strongly barred galaxies. For a significant number of HII regions, the observed colours and equivalent widths are not well reproduced by single burst evolutionary theoretical models.2015MNRAS.451.3173Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/451/3173CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/556/A98 : Star-forming rings in NGC5248 (Van der Laan+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/451/3173https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/451/3173http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/451/3173https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/451/3173https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/451/3173http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/451/3173GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/MNRAS/451/3173/table1Characteristics of the galaxy samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy namemeta.id;meta.maincharMTypeMorphological type from RC3 (de Vaucouleurs et al., 1991, Cat. VII/155)src.morph.typecharScaleAngulare scalepc/arcsecinstr.scaleintNTypeNuclear type (1)src.morph.typecharDistDistanceMpcpos.distance;pos.heliocentricfloatr_DistReference for Distance (2)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/451/3173/table5*Narrow band resultsGalaxyGalaxy namemeta.id.parentcharReg? Region numbermeta.id;meta.mainintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_RegMultiplicity index (ab) or Nucleusmeta.code.multipcharDist? Distance for the galaxy nucleusarcsecpos.angDistancefloatnullablePx? Position from the galaxy nucleus (1)arcsecpos.angDistancefloatnullablePy? Position from the galaxy nucleus (1)arcsecpos.angDistancefloatnullablelogL(Ha)? H{alpha} luminositylog(1e-07W)phys.luminosity;em.line.HalphafloatnullableDFlux/Flux? Error in the flux calculation, {delta}Flux/Flux (2)stat.errorfloatnullableEWHa? H{alpha} equivalent width0.1nmspect.line.eqWidth;em.line.HalphafloatnullableEWHb? H{beta} equivalent width0.1nmspect.line.eqWidth;em.line.HbetafloatnullableAV? Visual extinctionmagphys.absorption;em.opt.VfloatnullableJ/MNRAS/451/3173/table6Broad-band resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy namemeta.id.parentcharReg? Region numbermeta.id;meta.mainintnullablem_RegMultiplicity index (ab) or Nucleusmeta.code.multipcharRad? Radius of the region (1)pcphys.size.radius;obs.fieldfloatnullableDist? Distance for the galaxy nucleuskpcpos.angDistancefloatnullableRMAG? Absolute R magnitudemagphys.magAbs;em.opt.Rfloatnullablee_RMAG? rms uncertainty on RMAG (2)magstat.errorfloatnullableU-B? U-B colour indexmagphot.color;em.opt.U;em.opt.Bfloatnullablel_e_U-B[<= ] Limit flag on e_U-Bmeta.code.errorchare_U-B? rms uncertainty on U-Bmagstat.error;phot.color;em.opt.UfloatnullableB-R? B-R colour indexmagphot.color;em.opt.B;em.opt.Rfloatnullablee_B-R? rms uncertainty on B-Rmagstat.error;phot.color;em.opt.BfloatnullableR-I? R-I colour indexmagphot.color;em.opt.R;em.opt.Ifloatnullablel_e_R-I[<= ] Limit flag on e_R-Imeta.code.errorchare_R-I? rms uncertainty on R-Imagstat.error;phot.color;em.opt.Rfloatnullable