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Article: AAOmega radial velocities rule out current membership of the planetary nebula NGC 2438 in the open cluster M46

TitleAAOmega radial velocities rule out current membership of the planetary nebula NGC 2438 in the open cluster M46
Authors
KeywordsPlanetary nebulae: general
Open clusters and associations: general
Issue Date2008
Citation
Monthly Notices of the Royal Astronomical Society, 2008, v. 391, n. 1, p. 399-404 How to Cite?
AbstractWe present new radial velocity measurements of 586 stars in a one-degree field centred on the open cluster M46, and the planetary nebula NGC 2438 located within a nuclear radius of the cluster. The data are based on medium-resolution optical and near-infrared spectra taken with the AAOmega spectrograph on the Anglo-Australian Telescope. We find a velocity difference of about 30 km s -1 between the cluster and nebula, thus removing all ambiguities about the cluster membership of the planetary nebula caused by contradicting results in the literature. The line-of-sight velocity dispersion of the cluster is 3.9 ± 0.3 km s-1, likely to be affected by a significant population of binary stars. © 2008 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/208886
ISSN
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DC FieldValueLanguage
dc.contributor.authorKiss, László L.-
dc.contributor.authorSzabó, Gy M.-
dc.contributor.authorBalog, Zoltán-
dc.contributor.authorParker, Quentin A.-
dc.contributor.authorFrew, David J.-
dc.date.accessioned2015-03-23T02:02:04Z-
dc.date.available2015-03-23T02:02:04Z-
dc.date.issued2008-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2008, v. 391, n. 1, p. 399-404-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/208886-
dc.description.abstractWe present new radial velocity measurements of 586 stars in a one-degree field centred on the open cluster M46, and the planetary nebula NGC 2438 located within a nuclear radius of the cluster. The data are based on medium-resolution optical and near-infrared spectra taken with the AAOmega spectrograph on the Anglo-Australian Telescope. We find a velocity difference of about 30 km s -1 between the cluster and nebula, thus removing all ambiguities about the cluster membership of the planetary nebula caused by contradicting results in the literature. The line-of-sight velocity dispersion of the cluster is 3.9 ± 0.3 km s-1, likely to be affected by a significant population of binary stars. © 2008 RAS.-
dc.languageeng-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectPlanetary nebulae: general-
dc.subjectOpen clusters and associations: general-
dc.titleAAOmega radial velocities rule out current membership of the planetary nebula NGC 2438 in the open cluster M46-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2008.13899.x-
dc.identifier.scopuseid_2-s2.0-55949086858-
dc.identifier.volume391-
dc.identifier.issue1-
dc.identifier.spage399-
dc.identifier.epage404-
dc.identifier.eissn1365-2966-

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