J/MNRAS/440/2265ivo://CDS.VizieR/J/MNRAS/440/2265doi:10.26093/cds/vizier.74402265CDSMiralles-Caballero D.Diaz A.I.Rosales-Ortega F.F.Perez-Montero E.,Sanchez S.F.2024-08-08T20:13:10Z2015-04-23T08:43:48ZCDS support team

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

cds-question@unistra.frgalaxiesh-ii-regionsspectroscopyNumerical simulations of minor mergers predict little enhancement in the global star formation activity. However, it is still unclear the impact they have on the chemical state of the whole galaxy and on the mass build-up in the galaxy bulge and disc. We present a two-dimensional analysis of NCG 3310, currently undergoing an intense starburst likely caused by a recent minor interaction, using data from the PPAK Integral Field Spectroscopy Nearby Galaxies Survey (PINGS). With data from a large sample of about a hundred HII regions identified throughout the disc and spiral arms, we derive, using strong-line metallicity indicators and direct derivations, a rather flat gaseous abundance gradient. Thus, metal mixing processes occurred, as in observed galaxy interactions. Spectra from PINGS data and additional multiwavelength imaging were used to perform a spectral energy distribution fitting to the stellar emission and a photoionization modelling of the nebulae. The ionizing stellar population is characterized by single populations with a narrow age range (2.5-5Myr) and a broad range of masses (10^4^-6x10^6^M_{sun}_). The effect of dust grains in the nebulae is important, indicating that 25-70% of the ultraviolet photons can be absorbed by dust. The ionizing stellar population within the Hii regions represents typically a few per cent of the total stellar mass. This ratio, a proxy to the specific star formation rate, presents a flat or negative radial gradient. Therefore, minor interactions may indeed play an important role in the mass build-up of the bulge.2014MNRAS.440.2265Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/440/2265CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/402/1005 : Stellar cluster dynamical masses in NGC3310 (Hagele+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/440/2265https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/440/2265http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/440/2265https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/440/2265https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/440/2265http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/440/2265GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/440/2265/HIIreg (Catalogue of the HII regions and reddening corrected line intensities, and derived properties derived via {chi}^2^ minimization + CLOUDY analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/440/2265/HIIreg?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/440/2265/HIIreg?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/440/2265/HIIreg?GETtext/xml+votable180.050000true159.695466153.50183610.005555555555555556Cone search capability for table J/MNRAS/440/2265/tablea2 (Catalogue of external fibres and reddening corrected derived line intensities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/440/2265/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/440/2265/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/440/2265/tablea2?GETtext/xml+votable180.050000true159.712128153.47140640.0055555555555555566/6034 60402.040811542443644e-19 1.0810035871574334e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/440/2265?format=asciiOpticaldefaultJ/MNRAS/440/2265/HIIregCatalogue of the HII regions and reddening corrected line intensities, and derived properties derived via {chi}^2^ minimization + CLOUDY analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/99] HII region sequential numbermeta.recordintDRA[-55/61] Relative right ascension (G1)arcsecpos.eq.ra;arith.difffloatDDE[-79/64] Relative declination (G1)arcsecpos.eq.dec;arith.difffloatDist[0/95] Deprojected distancearcsecpos.angDistancefloat[OII]Line intensity of [OII]3727,3729 (G2)spect.line.intensity;arith.ratiofloate_[OII]rms uncertainty on [OII]stat.errorfloatHg? Line intensity of H{gamma} (G2)spect.line.intensity;arith.ratiofloatnullablee_Hg? rms uncertainty on Hgstat.errorfloatnullableHb[100] Line intensity of H{beta}spect.line.intensity;em.line.Hbeta;arith.ratiofloate_Hbrms uncertainty on Hbstat.errorfloat[OIII]1Line intensity of [OIII]4959 (G2)spect.line.intensity;arith.ratiofloate_[OIII]1rms uncertainty on [OIII]1stat.errorfloat[OIII]2Line intensity of [OIII]5007 (G2)spect.line.intensity;arith.ratiofloate_[OIII]2rms uncertainty on [OIII]2stat.errorfloat[NII]1? Line intensity of [NII]6548 (G2)spect.line.intensity;arith.ratiofloatnullablee_[NII]1? rms uncertainty on [NII]1stat.errorfloatnullableHaLine intensity of H{alpha} (2)spect.line.intensity;arith.ratiofloate_Harms uncertainty on Hastat.errorfloat[NII]2Line intensity of [NII]6584 (G2)spect.line.intensity;arith.ratiofloate_[NII]2rms uncertainty on [NII]2stat.errorfloat[SII]1Line intensity of [SII]6717 (G2)spect.line.intensity;arith.ratiofloate_[SII]1rms uncertainty on [NII]1stat.errorfloat[SII]2Line intensity of [SII]6731 (G2)spect.line.intensity;arith.ratiofloate_[SII]2rms uncertainty on [NII]2stat.errorfloatlogI(Hb)H{beta} intensity (erg/cm^2^/s)log(mW.m**-2)spect.line.intensity;em.line.Hbetafloatc(Hb)[0/0.3] Extinction coefficientphys.absorption.coefffloate_c(Hb)[0/0.04]? rms uncertainty on c(Hb)stat.errorfloatnullableFUVW2Observed flux density through XMM-OT UVW2 filter (1)aW.m**-2.nm**-1phot.flux;em.UVfloate_FUVW2rms uncertainty on FUVW2aW.m**-2.nm**-1stat.errorfloatFUVM2? Observed flux density through XMM-OT UVM2 filter (1)aW.m**-2.nm**-1phot.flux;em.UVfloatnullablee_FUVM2? rms uncertainty on FUVM2aW.m**-2.nm**-1stat.errorfloatnullableFu? Observed flux density through SDSS u filter (1)aW.m**-2.nm**-1phot.flux.density;em.opt.Ufloatnullablee_Fu? rms uncertainty on FuaW.m**-2.nm**-1stat.errorfloatnullableFF439WObserved flux density through HST/WFPC2 F439W filter (1)aW.m**-2.nm**-1phot.mag;em.opt.Bfloate_FF439Wrms uncertainty on FF439WaW.m**-2.nm**-1stat.errorfloatFF547MObserved flux density through HST/WFPC2 F547M filter (1)aW.m**-2.nm**-1phot.mag;em.opt.Vfloate_FF547Mrms uncertainty on FF547MaW.m**-2.nm**-1stat.errorfloatFF621MObserved flux density through HST/WFPC2 F621M filter (1)aW.m**-2.nm**-1phot.mag;em.opt.Rfloate_FF621Mrms uncertainty on FF621MaW.m**-2.nm**-1stat.errorfloatFi? Observed flux density through SDSS i filter (1)aW.m**-2.nm**-1phot.flux.density;em.opt.Ifloatnullablee_Fi? rms uncertainty on FiaW.m**-2.nm**-1stat.errorfloatnullableFz? Observed flux density through SDSS z filter (1)aW.m**-2.nm**-1phot.flux.density;em.opt.Ifloatnullablee_Fz? rms uncertainty on FzaW.m**-2.nm**-1stat.errorfloatnullableEWHa? Derived H{alpha} equivalent width (1)0.1nmspect.line.eqWidth;em.line.Halphaintnullablee_EWHa? rms uncertainty on EWHa0.1nmstat.errorintnullableEWHb? Derived H{beta} equivalent width (1)0.1nmspect.line.eqWidth;em.line.Hbetaintnullablee_EWHb? rms uncertainty on EWHb0.1nmstat.errorintnullablelogtauDerived age of the ionizing populationlog(yr)time.agefloatE_logtau? Error on logtau (upper value)log(yr)stat.error;stat.maxfloatnullablee_logtau? Error on logtau (lower value)log(yr)stat.errorfloatnullablelogMionDerived mass of the ionizing populationlog(solMass)phys.massfloatE_logMion? Error on logMion (upper value)log(solMass)stat.error;stat.maxfloatnullablee_logMion? Error on logMion (lower value)log(solMass)stat.errorfloatnullableAVDerived internal extinctionmagphys.absorptionfloatE_AV? Error on AV (upper value)magstat.error;stat.maxfloatnullablee_AV? Error on AV (lower value)magstat.errorfloatnullablefd[1/3.9] Derived absorption factor due to dust grain within the nebulaearith.factorfloate_fd? rms uncertainty on fdstat.errorfloatnullablef_fd[:] : indicated fixed value of fd to 1 (3)meta.codechar_RAPosition, computed from offsets DRA and DDE (right ascension part)degpos.eq.ra;meta.main_DEPosition, computed from offsets DRA and DDE (declination part)degpos.eq.dec;meta.mainJ/MNRAS/440/2265/tablea2Catalogue of external fibres and reddening corrected derived line intensitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/29] External region sequential numbermeta.recordintDRARelative right ascension (G1)arcsecpos.eq.ra;arith.difffloatDDERelative declination (G1)arcsecpos.eq.dec;arith.difffloatDistDeprojected distancearcsecpos.angDistancefloat[OII]Line intensity of [OII]3727,3729 (G2)spect.line.intensity;arith.ratiofloate_[OII]rms uncertainty on [OII]stat.errorfloatHb[100] Line intensity of H{beta}spect.line.intensity;em.line.Hbeta;arith.ratiofloate_Hbrms uncertainty on Hbstat.errorfloat[OIII]1Line intensity of [OIII]4959 (G2)spect.line.intensity;arith.ratiofloate_[OIII]1rms uncertainty on [OIII]1stat.errorfloat[OIII]2Line intensity of [OIII]5007 (G2)spect.line.intensity;arith.ratiofloate_[OIII]2rms uncertainty on [OIII]2stat.errorfloat[NII]1Line intensity of [NII]6548 (G2)spect.line.intensity;arith.ratiofloate_[NII]1rms uncertainty on [NII]1stat.errorfloatHaLine intensity of H{alpha} (G2)spect.line.intensity;arith.ratiofloate_Harms uncertainty on Hastat.errorfloat[NII]2Line intensity of [NII]6584 (G2)spect.line.intensity;arith.ratiofloate_[NII]2rms uncertainty on [NII]2stat.errorfloat[SII]1Line intensity of [SII]6717 (G2)spect.line.intensity;arith.ratiofloate_[SII]1rms uncertainty on [NII]1stat.errorfloat[SII]2Line intensity of [SII]6731 (G2)spect.line.intensity;arith.ratiofloate_[SII]2rms uncertainty on [NII]2stat.errorfloatlogI(Hb)H{beta} intensitylog(mW.m**-2)spect.line.intensity;em.line.Hbetafloatc(Hb)Extinction coefficientphys.absorption.coefffloate_c(Hb)? rms uncertainty on c(Hb)stat.errorfloatnullable_RAPosition, computed from offsets DRA and DDE (right ascension part)degpos.eq.ra;meta.main_DEPosition, computed from offsets DRA and DDE (declination part)degpos.eq.dec;meta.main