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dc.contributor.authorViironen, K.
dc.contributor.authorMampaso, A.
dc.contributor.authorCorradi, R.L.M.
dc.contributor.authorDrew, J.E.
dc.contributor.authorFrew, D.J.
dc.contributor.authorGiammanco, C.
dc.contributor.authorGreimel, R.
dc.contributor.authorLiimets, T.
dc.contributor.authorLindberg, J.E.
dc.contributor.authorRodriguez, M.
dc.contributor.authorSabin, L.
dc.contributor.authorSale, S.E.
dc.contributor.authorWilson, P.A.
dc.contributor.authorZijlstra, A.A.
dc.date.accessioned2011-06-13T11:09:12Z
dc.date.available2011-06-13T11:09:12Z
dc.date.issued2011
dc.identifier.citationViironen , K , Mampaso , A , Corradi , R L M , Drew , J E , Frew , D J , Giammanco , C , Greimel , R , Liimets , T , Lindberg , J E , Rodriguez , M , Sabin , L , Sale , S E , Wilson , P A & Zijlstra , A A 2011 , ' A new planetary nebula in the outer reaches of the galaxy ' , Astronomy and Astrophysics , vol. 530 . https://doi.org/10.10510004-6361/201014897
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 162700
dc.identifier.otherPURE UUID: 14c8a388-294e-4d34-8286-25d9dff95c4b
dc.identifier.otherdspace: 2299/5952
dc.identifier.otherScopus: 79956363289
dc.identifier.urihttp://hdl.handle.net/2299/5952
dc.descriptionOriginal article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory
dc.description.abstractAims. A proper determination of the abundance gradient in the Milky Way requires the observation of objects at large galactiocentric distances. With this aim, we are exploring the planetary nebula population towards the Galactic anticentre. In this article, the discovery and physico-chemical study of a new planetary nebula towards the anticentre direction, IPHASX J052531.19+281945.1 (PNG 178.1-04.0), is presented. Methods. The planetary nebula was discovered from the IPHAS survey. Long-slit follow-up spectroscopy was carried out to confirm its planetary nebula nature and to calculate its physical and chemical characteristics. Results. The newly discovered planetary nebula turned out to be located at a very large galactocentric distance (D-GC = 20.8 +/- 3.8 kpc), larger than any previously known planetary nebula with measured abundances. Its relatively high oxygen abundance (12+log(O/H) = 8.36 +/- 0.03) supports a flattening of the Galactic abundance gradient at large galactocentric distances rather than a linearly decreasing gradient.en
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.rightsOpen
dc.subjectgalaxies : abundances
dc.titleA new planetary nebula in the outer reaches of the galaxyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted2011
rioxxterms.versionofrecordhttps://doi.org/10.10510004-6361/201014897
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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