J/A+A/552/A12ivo://CDS.VizieR/J/A+A/552/A12doi:10.26093/cds/vizier.35520012CDSStasisnka G.Pena M.Bresolin F.Tsamis Y.G.2013-07-24T14:59:09Z2013-03-14T08:35:04ZCDS support team

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

cds-question@unistra.frgalaxiesplanetary-nebulaeh-ii-regionsspectroscopychemical-abundancesWe have obtained deep spectroscopy of 26 planetary nebulae (PNe) and 9 compact HII regions in the nearby spiral galaxy NGC 300, and analyzed them together with the giant HII regions observed by Bresolin et al. (2009ApJ...700..309B). We have determined the physical properties of all those objects and their content in He, N, O, Ne, S and Ar in a consistent way. We find that compact HII regions have abundances similar to those of giant HII regions, while PNe have systematically larger N/O ratios and similar Ne/O and Ar/O ratios. We demonstrate that this nitrogen enhancement in PNe cannot be due to second dredge-up in the progenitor stars, since their initial masses are around 2-2.5M_{sun}_. An extra mixing process is required, perhaps be driven by rotation. Concerning the radial abundance distribution, PNe behave differently from HII regions: In the central parts, they show an average O/H smaller by 0.15dex. Their abundance dispersion at any galactocentric radius is significantly larger than for HII regions and many of them have O/H values higher than HII regions at the same galactocentric distance, suggesting that oxygen production in the PN progenitors in NGC 300 is common. PN abundance gradients in O/H, Ne/H and Ar/He are significantly shallower than those of HII regions. We argue that this indicates a steepening of the metallicity gradient in NGC 300 during the last Gr, rather than the effect of radial stellar motions.2013A&A...552A..12Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/552/A12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/306/9 : PNe and HII in NGC 300 (Soffner+, 1996)J/MNRAS/405/1349 : LMC PNe [OIII] 5007{AA} and H{beta} flux (Reid+, 2010)J/A+A/547/A78 : Catalog of NGC 300 planetary nebula candidates (Pena+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/552/A12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/552/A12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/552/A12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/552/A12https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/552/A12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/552/A12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/552/A12/table3 (Coordinates, galactocentric distances, reddening corrected observed line fluxes (on scale of H{beta}=1), logarithmic reddening correction for H{beta} and total H{beta} flux)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/552/A12/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/552/A12/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/552/A12/table3?GETtext/xml+votable180.050000true13.6382083-37.640750.0055555555555555566/35536https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/552/A12?format=asciiOpticaldefaultJ/A+A/552/A12/table3Coordinates, galactocentric distances, reddening corrected observed line fluxes (on scale of H{beta}=1), logarithmic reddening correction for H{beta} and total H{beta} fluxF3889? Flux of H8 linespect.line.intensity;arith.ratiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[2/109] Identification Number (1)meta.id;meta.mainintm_Seq[ab] Multiplicity index on Seqmeta.code.multipcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainTypeObject type: "CHR" for compact HII region, or "PN" for planetary nebulasrc.class;obs.fieldcharRGalactocentric distance in units of R25pos.angDistancefloatl_F3727[l] l indicates upper limit of F3727meta.code.errorcharF3727? Flux of [OII] 3727{AA} linespect.line.intensity;arith.ratiofloatnullablen_F3727[n] n for noisymeta.notechare_F3727? Error for F3727stat.errorfloatnullableF3750? Flux of H12 3750{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3750? Error for F3750stat.errorfloatnullableF3770? Flux of H11 3770{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3770? Error for F3770stat.errorfloatnullableF3797? Flux of H10 3997{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3797? Error for F3797stat.errorfloatnullablel_F3835[l] l indicates upper limit of F3835meta.code.errorcharF3835? Flux of H9 3935{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3835? Error for F3835stat.errorfloatnullableF3869? Flux of [NeIII] 3869{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3869? Error for F3869stat.errorfloatnullablel_F3889[l] l indicates upper limit of F3889meta.code.errorchare_F3889? Error for F3889stat.errorfloatnullablel_F3970[l] l indicates upper limit of F3970meta.code.errorcharF3970? Flux of H7 3970{AA} linespect.line.intensity;arith.ratiofloatnullablee_F3970? Error for F3970stat.errorfloatnullablel_F4026[l] l indicates upper limit of F4026meta.code.errorcharF4026? Flux of HeI 4026{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4026? Error for F4026stat.errorfloatnullablel_F4069[l] l indicates upper limit of F4069meta.code.errorcharF4069? Flux of [SII] 4069{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4069? Error for F4069stat.errorfloatnullableF4102? Flux of Hdelta 4102{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4102? Error for F4102stat.errorfloatnullablel_F4267[l] l indicates upper limit of F4267meta.code.errorcharF4267? Flux of CII 4267{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4267? Error for F4267stat.errorfloatnullableF4340? Flux of Hgamma 4340{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4340? Error for F4340stat.errorfloatnullablel_F4363[l] l indicates upper limit of F4363meta.code.errorcharF4363? Flux of [OIII] 4363{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4363? Error for F4363stat.errorfloatnullablel_F4471[l] l indicates upper limit of F4471meta.code.errorcharF4471? Flux of HeI 4471{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4471? Error for F4471stat.errorfloatnullablel_F4686[l] l indicates upper limit of F4686meta.code.errorcharF4686? Flux of HeII 4686{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4686? Error for F4686stat.errorfloatnullablel_F4711[l] l indicates upper limit of F4711meta.code.errorcharF4711? Flux of [ArIV] 4711{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4711? Error for F4711stat.errorfloatnullablel_F4740[l] l indicates upper limit of F4740meta.code.errorcharF4740? Flux of [ArIV] 4740{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4740? Error for F4740stat.errorfloatnullableF4861[1] Flux of H{beta} 4861{AA} linespect.line.intensity;arith.ratiofloate_F4861Error for F4861stat.errorfloatF4922? Flux of HeI 4922{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4922? Error for F4922stat.errorfloatnullableF4859? Flux of [OIII] 4959{AA} linespect.line.intensity;arith.ratiofloatnullablee_F4859? Error for F4959stat.errorfloatnullableF5007? Flux of [OIII] 5007{AA} linespect.line.intensity;arith.ratiofloatnullablee_F5007? Error for F5007stat.errorfloatnullableF5015? Flux of HeI 5015{AA} linespect.line.intensity;arith.ratiofloatnullablee_F5015? Error for F5015stat.errorfloatnullableF5200? Flux of [NI] 5200{AA} linespect.line.intensity;arith.ratiofloatnullablee_F5200? Error for F5200stat.errorfloatnullableF5755? Flux of [NII] 5755{AA} linespect.line.intensity;arith.ratiofloatnullablee_F5755? Error for F5755stat.errorfloatnullablel_F5876[l] l indicates upper limit of F5876meta.code.errorcharF5876? Flux of HeI 5876{AA} linespect.line.intensity;arith.ratiofloatnullablee_F5876? Error for F5876stat.errorfloatnullablel_F6300[l] l indicates upper limit of F6300meta.code.errorcharF6300? Flux of [OI] 6300{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6300? Error for F6300stat.errorfloatnullablel_F6312[l] l indicates upper limit of F6312meta.code.errorcharF6312? Flux of [SIII] 6312{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6312? Error for F6312stat.errorfloatnullablel_F6548[l] l indicates upper limit of F6548meta.code.errorcharF6548? Flux of [NII] 6548{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6548? Error for F6548stat.errorfloatnullableF6563? Flux of H{alpha} 6563{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6563? Error for F6563stat.errorfloatnullablel_F6583[l] l indicates upper limit of F6583meta.code.errorcharF6583? Flux of [NII] 6583{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6583? Error for F6583stat.errorfloatnullablel_F6678[l] l indicates upper limit of F6678meta.code.errorcharF6678? Flux of HeI 6678{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6678? Error for F6678stat.errorfloatnullablel_F6716[l] l indicates upper limit of F6716meta.code.errorcharF6716? Flux of [SII] 6716{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6716? Error for F6716stat.errorfloatnullablel_F6731[l] l indicates upper limit of F6731meta.code.errorcharF6731? Flux of [SII] 6731{AA} linespect.line.intensity;arith.ratiofloatnullablee_F6731? Error for F6731stat.errorfloatnullablel_F7066[l] l indicates upper limit of F7066meta.code.errorcharF7066? Flux of HeI 7065{AA} linespect.line.intensity;arith.ratiofloatnullablee_F7066? Error for F7066stat.errorfloatnullablel_F7136[l] l indicates upper limit of F7136meta.code.errorcharF7136? Flux of [ArIII] 7136{AA} linespect.line.intensity;arith.ratiofloatnullablee_F7136? Error for F7136stat.errorfloatnullablen_F7320[+l] l indicates upper limit of F7320, + addition of fluxes of 7320 & 7330meta.notecharF7320? Flux of [OII] 7320{AA} linespect.line.intensity;arith.ratiofloatnullablee_F7320? Error for F7320stat.errorfloatnullablel_F7330[l] l indicates upper limit of F7330meta.code.errorcharF7330? Flux of [OII] 7330{AA} linespect.line.intensity;arith.ratiofloatnullablee_F7330? Error for F7330stat.errorfloatnullablel_F9069[l] l indicates upper limit of F9069meta.code.errorcharF9069? Flux of [SIII] 9069{AA} linespect.line.intensity;arith.ratiofloatnullablee_F9069? Error for F9069stat.errorfloatnullablel_F9531[l] l indicates upper limit of F9531meta.code.errorcharF9531? Flux of [SIII] 9531{AA} linespect.line.intensity;arith.ratiofloatnullablee_F9531? Error for F9531stat.errorfloatnullablec(Hb)H{beta} logarithmic reddeningphys.absorptionfloatlogF(Hb)Log of H{beta} flux, in erg.cm^-2^.s^-1^log(mW.m**-2)phot.flux;em.line.Hbetafloat