Show simple item record

dc.contributor.authorSalerno, Gustavo Maltapt_BR
dc.contributor.authorBica, Eduardo Luiz Damianipt_BR
dc.contributor.authorBonatto, Charles Josept_BR
dc.contributor.authorRodrigues, Irapuanpt_BR
dc.date.accessioned2014-08-08T02:06:56Zpt_BR
dc.date.issued2009pt_BR
dc.identifier.issn0004-6361pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/99255pt_BR
dc.description.abstractContext. Passing through the disk of a galaxy, a massive object such as a globular cluster can trigger star formation. Aims. We test the hypothesis that the most massive globular cluster in the Galaxy, ωCentauri, which crossed the disk approximately 24 ± 2Myr ago, may have triggered the formation of the open clusters Stephenson 2 and BDSB122. Methods. The orbits of ωCentauri, Stephenson 2, and BDSB122 are computed for the three-component model of Johnston, Hernquist & Bolte, which considers the disk, spheroidal, and halo gravitational potentials. Results. With the reconstructed orbit of ωCentauri, we show that the latest impact site is consistent, within significant uncertainties, with the birth-site of the young massive open clusters BDSB122 and Stephenson 2.Within the uncertainties, this scenario is consistent with the timescale of their backward motion in the disk, shock propagation and delayed star formation. Conclusions. Together with open cluster formation associated with density waves in spiral arms, the present results are consistent with massive globular clusters being additional progenitors of open clusters, the most massive ones in particular.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofAstronomy and astrophysics. Les Ulis. Vol. 498, no. 2 (May 2009), p. 419-423pt_BR
dc.rightsOpen Accessen
dc.subjectGalaxy: globular clusters: individual: ωCentaurien
dc.subjectAglomerados estelares globularespt_BR
dc.subjectFormacao de estrelaspt_BR
dc.subjectGalaxy: open clusters and associations: individual: BDSBen
dc.subjectGalaxiapt_BR
dc.subjectGalaxy: open clusters and associations: individual: Stephenson 2en
dc.subjectGravitacaopt_BR
dc.titleOn the possible generation of the young massive open clusters Stephenson 2 and BDSB122 by ω Centauript_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000827215pt_BR
dc.type.originEstrangeiropt_BR


Files in this item

Thumbnail
   

This item is licensed under a Creative Commons License

Show simple item record