Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/9206
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dc.contributor.authorMasana Fresno, Eduardcat
dc.contributor.authorJordi i Nebot, Carmecat
dc.contributor.authorMaitzen, H. M (Hans Michael), 1943-cat
dc.contributor.authorTorra Roca, Jorgecat
dc.date.accessioned2009-08-27T08:06:50Z-
dc.date.available2009-08-27T08:06:50Z-
dc.date.issued1998cat
dc.identifier.issn0365-0138cat
dc.identifier.urihttp://hdl.handle.net/2445/9206-
dc.description.abstractA new statistical parallax method using the Maximum Likelihood principle is presented, allowing the simultaneous determination of a luminosity calibration, kinematic characteristics and spatial distribution of a given sample. This method has been developed for the exploitation of the Hipparcos data and presents several improvements with respect to the previous ones: the effects of the selection of the sample, the observational errors, the galactic rotation and the interstellar absorption are taken into account as an intrinsic part of the formulation (as opposed to external corrections). Furthermore, the method is able to identify and characterize physically distinct groups in inhomogeneous samples, thus avoiding biases due to unidentified components. Moreover, the implementation used by the authors is based on the extensive use of numerical methods, so avoiding the need for simplification of the equations and thus the bias they could introduce. Several examples of application using simulated samples are presented, to be followed by applications to real samples in forthcoming articles.eng
dc.format.extent11 p.cat
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherEDP Sciencescat
dc.relation.isformatofReproducció del document publicat a http://dx.doi.org/10.1051/aas:1998140cat
dc.relation.ispartofAstronomy and Astrophysics Supplement Series, 1998, vol. 128, núm. 1, p. 265-275.cat
dc.relation.urihttp://dx.doi.org/10.1051/aas:1998140-
dc.rights(c) The European Southern Observatory, 1998cat
dc.subject.classificationEstelscat
dc.subject.classificationFotometria astronòmicacat
dc.subject.otherStars: chemically peculiareng
dc.subject.otherStars: fundamental parameterseng
dc.subject.otherStars: early typeeng
dc.titleCP2 stars as viewed by the uvby Hbeta systemeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec145148cat
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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