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Article: Towards a new distance scale and luminosity function for nearby planetary nebulae

TitleTowards a new distance scale and luminosity function for nearby planetary nebulae
Authors
KeywordsStars: distances
(ISM:) planetary nebulae: general
Issue Date2006
Citation
Proceedings of the International Astronomical Union, 2006, v. 2, n. 234, p. 49-52 How to Cite?
AbstractThe local planetary nebula (PN) census is dominated by extremely evolved, examples, and until recently, was incomplete. New discoveries from the AAO/UKST Hα Survey and SHASSA, have partially remedied this problem. In addition, we find that some currently accepted nearby PNe are in fact Strömgren spheres in the ISM ionised by a hot white dwarf. Distance estimates for a robust sample of calibrating PNe from the literature, plus new distances for a number of highly evolved PNe, have allowed a new Ha surface brightness - radius relationship to be devised as a useful distance indicator. It covers >6 dex in SB, and while the spread in SB is ∼1 dex at a given radius, optically thick (mainly bipolar and bipolar-core) PNe tend to populate the upper bound of the trend, while common-envelope PNe and very high-excitation PNe form a sharp lower boundary. Hence, distances can be estimated for all remaining local PNe, allowing the definition of a relatively complete census of PNe in the solar neighbourhood within 1.0 kpc. This provides a first look at the faint end of the PN luminosity function, and new estimates of the space density, scale height, total number, and birth rate of Galactic PNe. © 2006 International Astronomical Union.
Persistent Identifierhttp://hdl.handle.net/10722/208869
ISSN
2015 SCImago Journal Rankings: 0.105

 

DC FieldValueLanguage
dc.contributor.authorFrew, David J.-
dc.contributor.authorParker, Quentin A.-
dc.date.accessioned2015-03-23T02:02:00Z-
dc.date.available2015-03-23T02:02:00Z-
dc.date.issued2006-
dc.identifier.citationProceedings of the International Astronomical Union, 2006, v. 2, n. 234, p. 49-52-
dc.identifier.issn1743-9213-
dc.identifier.urihttp://hdl.handle.net/10722/208869-
dc.description.abstractThe local planetary nebula (PN) census is dominated by extremely evolved, examples, and until recently, was incomplete. New discoveries from the AAO/UKST Hα Survey and SHASSA, have partially remedied this problem. In addition, we find that some currently accepted nearby PNe are in fact Strömgren spheres in the ISM ionised by a hot white dwarf. Distance estimates for a robust sample of calibrating PNe from the literature, plus new distances for a number of highly evolved PNe, have allowed a new Ha surface brightness - radius relationship to be devised as a useful distance indicator. It covers >6 dex in SB, and while the spread in SB is ∼1 dex at a given radius, optically thick (mainly bipolar and bipolar-core) PNe tend to populate the upper bound of the trend, while common-envelope PNe and very high-excitation PNe form a sharp lower boundary. Hence, distances can be estimated for all remaining local PNe, allowing the definition of a relatively complete census of PNe in the solar neighbourhood within 1.0 kpc. This provides a first look at the faint end of the PN luminosity function, and new estimates of the space density, scale height, total number, and birth rate of Galactic PNe. © 2006 International Astronomical Union.-
dc.languageeng-
dc.relation.ispartofProceedings of the International Astronomical Union-
dc.subjectStars: distances-
dc.subject(ISM:) planetary nebulae: general-
dc.titleTowards a new distance scale and luminosity function for nearby planetary nebulae-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1017/S1743921306002742-
dc.identifier.scopuseid_2-s2.0-33845533613-
dc.identifier.volume2-
dc.identifier.issue234-
dc.identifier.spage49-
dc.identifier.epage52-
dc.identifier.eissn1743-9221-

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