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Conference Paper: A barium-rich binary central star in Abell 70
Title | A barium-rich binary central star in Abell 70 |
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Authors | |
Keywords | planetary nebulae: individual (PN G038.1-25.4) stars: chemically peculiar stars: AGB and post-AGB planetary nebulae: general binaries: general binaries: symbiotic |
Issue Date | 2011 |
Citation | Proceedings of the International Astronomical Union, 2011, v. 7, n. S283, p. 314-315 How to Cite? |
Abstract | We 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 Identifier | http://hdl.handle.net/10722/208950 |
ISSN | 2020 SCImago Journal Rankings: 0.124 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Boffin, Henri M J | - |
dc.contributor.author | Miszalski, Brent | - |
dc.contributor.author | Frew, David J. | - |
dc.contributor.author | Acker, Agnès | - |
dc.contributor.author | Köppen, Joachim | - |
dc.contributor.author | Moffat, Anthony F J | - |
dc.contributor.author | Parker, Quentin A. | - |
dc.date.accessioned | 2015-03-23T02:02:20Z | - |
dc.date.available | 2015-03-23T02:02:20Z | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | Proceedings of the International Astronomical Union, 2011, v. 7, n. S283, p. 314-315 | - |
dc.identifier.issn | 1743-9213 | - |
dc.identifier.uri | http://hdl.handle.net/10722/208950 | - |
dc.description.abstract | We 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.language | eng | - |
dc.relation.ispartof | Proceedings of the International Astronomical Union | - |
dc.subject | planetary nebulae: individual (PN G038.1-25.4) | - |
dc.subject | stars: chemically peculiar | - |
dc.subject | stars: AGB and post-AGB | - |
dc.subject | planetary nebulae: general | - |
dc.subject | binaries: general | - |
dc.subject | binaries: symbiotic | - |
dc.title | A barium-rich binary central star in Abell 70 | - |
dc.type | Conference_Paper | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1017/S1743921312011192 | - |
dc.identifier.scopus | eid_2-s2.0-84865760336 | - |
dc.identifier.volume | 7 | - |
dc.identifier.issue | S283 | - |
dc.identifier.spage | 314 | - |
dc.identifier.epage | 315 | - |
dc.identifier.eissn | 1743-9221 | - |
dc.identifier.isi | WOS:000309944800060 | - |
dc.identifier.issnl | 1743-9213 | - |