English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/15796
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
DC FieldValueLanguage
dc.contributor.authorSánchez, Néstor-
dc.contributor.authorAlfaro, Emilio J.-
dc.contributor.authorElías, Federico-
dc.contributor.authorDelgado Sánchez, Antonio J.-
dc.contributor.authorCabrera-Caño, Jesús-
dc.identifier.citationAstrophysical Journal 667: 213-218 (2007)en_US
dc.description6 pages, 7 figures, 1 table.-- ArXiv pre-print available at: http://arxiv.org/abs/0708.3579en_US
dc.description.abstractThe Gould Belt (GB) is a system of gas and young, bright stars distributed along a plane that is inclined with respect to the main plane of the Milky Way. Observational evidence suggests that the GB is our closest star formation complex, but its true nature and origin remain rather controversial. In this work we analyze the fractal structure of the stellar component of the GB. In order to do this, we tailor and apply an algorithm that estimates the fractal dimension in a precise and accurate way, avoiding both boundary and small-data set problems. We find that early OB stars (of spectral types earlier than B4) in the GB have a fractal dimension very similar to that of the gas clouds in our Galaxy. On the contrary, stars in the GB of later spectral types show a larger fractal dimension, similar to that found for OB stars of both age groups in the local Galactic disk (LGD). This result seems to indicate that while the younger OB stars in the GB preserve the memory of the spatial structure of the cloud where they were born, older stars are distributed following a similar morphology as that found for the LGD stars. The possible causes for these differences are discussed.en_US
dc.description.sponsorshipE. J. A. acknowledges funding from MEC of Spain through grants AYA2004-05395 and AYA2004-08260-C03-02, and from Consejería de Educación y Ciencia (Junta de Andalucía) through TIC-101.en_US
dc.format.extent271131 bytes-
dc.publisherAmerican Astronomical Societyen_US
dc.publisherInstitute of Physics Publishing-
dc.subjectMethods: numericalen_US
dc.subjectSolar neighborhooden_US
dc.subjectStars: early-typeen_US
dc.titleThe Nature of the Gould Belt from a Fractal Analysis of its Stellar Populationen_US
dc.description.peerreviewedPeer revieweden_US
Appears in Collections:(IAA) Artículos
Files in This Item:
File Description SizeFormat 
0708.3579v1.pdf264,78 kBAdobe PDFThumbnail
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.