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Article: K 1-6: An asymmetric planetary nebula with a binary central star

TitleK 1-6: An asymmetric planetary nebula with a binary central star
Authors
Keywordsbinaries: general
planetary nebulae: general
planetary nebulae: individual: K 1-6
stars: AGB and post-AGB
Issue Date2011
Citation
Publications of the Astronomical Society of Australia, 2011, v. 28, n. 1, p. 83-94 How to Cite?
AbstractWe present new imaging data and archival multiwavelength observations of the little-studied emission nebula K 1-6 and its central star. Narrow-band images in Hα (+[N II]) and [O III] taken with the Faulkes Telescope North reveal a stratified, asymmetric, elliptical nebula surrounding a central star which has the colours of a late G or early K-type subgiant or giant. GALEX ultraviolet images reveal a very hot subdwarf or white dwarf coincident in position with this star. The cooler, optically dominant star is strongly variable with a period of 21.312±0.008 days, and is possibly a high-amplitude member of the RS CVn class, although an FK Com classification is also possible. Archival ROSAT data provide good evidence that the cool star has an active corona. We conclude that K 1-6 is most likely an old bona fide planetary nebula at a distance of ∼1.0kpc, interacting with the interstellar medium, and containing a binary or ternary central star. The observations and data analyses reported in this paper were conducted in conjunction with Year 11 high school students as part of an Australian Research Council Linkage Grant science education project, denoted Space To Grow, conducted jointly by professional astronomers, educational researchers, teachers, and high-school students. © Astronomical Society of Australia 2011.
Persistent Identifierhttp://hdl.handle.net/10722/208999
ISSN
2015 Impact Factor: 3.245

 

DC FieldValueLanguage
dc.contributor.authorFrew, David J.-
dc.contributor.authorStanger, Jeff-
dc.contributor.authorFitzgerald, Michael T.-
dc.contributor.authorParker, Quentin A.-
dc.contributor.authorDanaia, Lena-
dc.contributor.authorMcKinnon, David H.-
dc.contributor.authorGuerrero, M. A.-
dc.contributor.authorHedberg, John G.-
dc.contributor.authorHollow, Robert P.-
dc.contributor.authorAn, Yvonne-
dc.contributor.authorBor, Shu Han-
dc.contributor.authorColman, Isabel-
dc.contributor.authorGraham-White, Claire-
dc.contributor.authorLi, Qing Wen-
dc.contributor.authorMai, Juliette-
dc.contributor.authorPapadakis, Katerina-
dc.contributor.authorPicone-Murray, Julia-
dc.contributor.authorHoang, Melanie V.-
dc.contributor.authorYean, Vivian-
dc.date.accessioned2015-03-23T02:02:30Z-
dc.date.available2015-03-23T02:02:30Z-
dc.date.issued2011-
dc.identifier.citationPublications of the Astronomical Society of Australia, 2011, v. 28, n. 1, p. 83-94-
dc.identifier.issn1323-3580-
dc.identifier.urihttp://hdl.handle.net/10722/208999-
dc.description.abstractWe present new imaging data and archival multiwavelength observations of the little-studied emission nebula K 1-6 and its central star. Narrow-band images in Hα (+[N II]) and [O III] taken with the Faulkes Telescope North reveal a stratified, asymmetric, elliptical nebula surrounding a central star which has the colours of a late G or early K-type subgiant or giant. GALEX ultraviolet images reveal a very hot subdwarf or white dwarf coincident in position with this star. The cooler, optically dominant star is strongly variable with a period of 21.312±0.008 days, and is possibly a high-amplitude member of the RS CVn class, although an FK Com classification is also possible. Archival ROSAT data provide good evidence that the cool star has an active corona. We conclude that K 1-6 is most likely an old bona fide planetary nebula at a distance of ∼1.0kpc, interacting with the interstellar medium, and containing a binary or ternary central star. The observations and data analyses reported in this paper were conducted in conjunction with Year 11 high school students as part of an Australian Research Council Linkage Grant science education project, denoted Space To Grow, conducted jointly by professional astronomers, educational researchers, teachers, and high-school students. © Astronomical Society of Australia 2011.-
dc.languageeng-
dc.relation.ispartofPublications of the Astronomical Society of Australia-
dc.subjectbinaries: general-
dc.subjectplanetary nebulae: general-
dc.subjectplanetary nebulae: individual: K 1-6-
dc.subjectstars: AGB and post-AGB-
dc.titleK 1-6: An asymmetric planetary nebula with a binary central star-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1071/AS10017-
dc.identifier.scopuseid_2-s2.0-79953000099-
dc.identifier.volume28-
dc.identifier.issue1-
dc.identifier.spage83-
dc.identifier.epage94-
dc.identifier.eissn1448-6083-

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