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Conference Paper: A barium-rich binary central star in Abell 70

TitleA barium-rich binary central star in Abell 70
Authors
Keywordsplanetary nebulae: individual (PN G038.1-25.4)
stars: chemically peculiar
stars: AGB and post-AGB
planetary nebulae: general
binaries: general
binaries: symbiotic
Issue Date2011
Citation
Proceedings of the International Astronomical Union, 2011, v. 7, n. S283, p. 314-315 How to Cite?
AbstractWe have found the central star of Abell 70 (PN G038.1-25.4, hereafter A 70) to be a binary consisting of a G8 IV-V secondary and a hot white dwarf. The secondary shows enhanced Ba II and Sr II features, firmly classifying it as a barium star. The nebula is found to have Type-I chemical abundances with helium and nitrogen enrichment, which combined with future abundance studies of the central star, will establish A 70 as a unique laboratory for studying s-process AGB nucleosynthesis. © 2012 International Astronomical Union.
Persistent Identifierhttp://hdl.handle.net/10722/208950
ISSN
2015 SCImago Journal Rankings: 0.105

 

DC FieldValueLanguage
dc.contributor.authorBoffin, Henri M J-
dc.contributor.authorMiszalski, Brent-
dc.contributor.authorFrew, David J.-
dc.contributor.authorAcker, Agnès-
dc.contributor.authorKöppen, Joachim-
dc.contributor.authorMoffat, Anthony F J-
dc.contributor.authorParker, Quentin A.-
dc.date.accessioned2015-03-23T02:02:20Z-
dc.date.available2015-03-23T02:02:20Z-
dc.date.issued2011-
dc.identifier.citationProceedings of the International Astronomical Union, 2011, v. 7, n. S283, p. 314-315-
dc.identifier.issn1743-9213-
dc.identifier.urihttp://hdl.handle.net/10722/208950-
dc.description.abstractWe have found the central star of Abell 70 (PN G038.1-25.4, hereafter A 70) to be a binary consisting of a G8 IV-V secondary and a hot white dwarf. The secondary shows enhanced Ba II and Sr II features, firmly classifying it as a barium star. The nebula is found to have Type-I chemical abundances with helium and nitrogen enrichment, which combined with future abundance studies of the central star, will establish A 70 as a unique laboratory for studying s-process AGB nucleosynthesis. © 2012 International Astronomical Union.-
dc.languageeng-
dc.relation.ispartofProceedings of the International Astronomical Union-
dc.subjectplanetary nebulae: individual (PN G038.1-25.4)-
dc.subjectstars: chemically peculiar-
dc.subjectstars: AGB and post-AGB-
dc.subjectplanetary nebulae: general-
dc.subjectbinaries: general-
dc.subjectbinaries: symbiotic-
dc.titleA barium-rich binary central star in Abell 70-
dc.typeConference_Paper-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1017/S1743921312011192-
dc.identifier.scopuseid_2-s2.0-84865760336-
dc.identifier.volume7-
dc.identifier.issueS283-
dc.identifier.spage314-
dc.identifier.epage315-
dc.identifier.eissn1743-9221-

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