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dc.creatorElias, F.es
dc.creatorAlfaro, Emilio J.es
dc.creatorCabrera Caño, Jesús Maríaes
dc.date.accessioned2017-07-10T13:46:09Z
dc.date.available2017-07-10T13:46:09Z
dc.date.issued2006-09
dc.identifier.citationElias, F., Alfaro, E.J. y Cabrera Caño, J.M. (2006). Ob stars in the solar neighborhood. II. kinematics. Astronomical Journal, 132 (3), 1052-1060.
dc.identifier.issn0004-6256es
dc.identifier.urihttp://hdl.handle.net/11441/62325
dc.description.abstractUsing the spatial classification method and the structural parameters estimated for the Gould Belt (GB) and the local Galactic disk (LGD) from a previous paper, we have evaluated spatial membership probabilities for a sample of O and B stars from the Hipparcos catalog (Perryman and coworkers) with available proper motions and radial velocity data. Thus, being able to study the space velocity fields of both systems, we conclude that the GB and the LGD present different statistical distributions, both in velocity space and in phase space. In light of their possible existence as distinct systems, we analyze different kinematic aspects in the vicinity of the Sun, and we find the GB to be responsible for the highly negative vertex deviation found for the OB stars in the solar neighborhood. We also find that the GB noticeably alters the estimation of the Oort constants in the Galactic disk; thus, in order to establish comparisons with other kinematic studies based on older stellar populations, a careful pruning of the GB members must be performed. Further analysis of the GB velocity field and the moving groups that contribute to it suggest the possibility that the GB can be the result of a chance superposition of moving groups. We propose for future investigations the dynamical analysis of these moving groups in order to probe the origin of the GB.es
dc.description.sponsorshipMinisterio de Cultura, Educacion y Deporte AYA2004-05395 AYA2004-08260-C03-02es
dc.description.sponsorshipConsejería de Educacion y Ciencia Junta de Andalucía TIC-101es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherIOP Publishing Ltd.es
dc.relation.ispartofAstronomical Journal, 132 (3), 1052-1060.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSolar neighborhoodes
dc.subjectStars: early-typees
dc.subjectStars: kinematicses
dc.titleOb stars in the solar neighborhood. II. kinematicses
dc.typeinfo:eu-repo/semantics/articlees
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessrightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Atómica, Molecular y Nucleares
dc.relation.projectIDAYA2004-05395es
dc.relation.projectIDAYA2004-08260-C03-02es
dc.relation.projectIDTIC-101es
dc.relation.publisherversionhttp://dx.doi.org/10.1086/505941es
dc.identifier.doi10.1086/505941es
idus.format.extent9 p.es
dc.journaltitleAstronomical Journales
dc.publication.volumen132es
dc.publication.issue3es
dc.publication.initialPage1052es
dc.publication.endPage1060es
dc.contributor.funderMinisterio de Educación, Cultura y Deporte (MECD). España
dc.contributor.funderJunta de Andalucía

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