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dc.date.accessioned | 2019-10-29T17:21:49Z | |
dc.date.available | 2019-10-29T17:21:49Z | |
dc.date.issued | 2008 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/84323 | |
dc.description.abstract | We combine optical and radio observations to trace the spiral structure in the third quadrant of the Milky Way. The optical observations consist of a large sample of young open clusters and associations, whereas the radio observations consist of a survey of nearby and distant clouds observed in CO. Both the optical and radio samples are the largest ones thus far presented in the literature. We use this unique material to analyze the behavior of interstellar extinction and to trace the detailed structure of the third Galactic quadrant (TGQ).We find that the outer (Cygnus) grand design spiral arm is traced by stellar and CO components, while the Perseus arm is traced solely by CO and is possibly being disrupted by the crossing of the Local (Orion) arm. The Local arm is traced by CO and young stars toward l = 240° and extends for over 8 kpc along the line of sight reaching the outer arm. Finally, we characterize the Galactic warp and compare the geometries implied by the young stellar and CO components. | en |
dc.format.extent | 930-939 | es |
dc.language | en | es |
dc.subject | Galaxy: disk | es |
dc.subject | Galaxy: structure | es |
dc.subject | Open clusters and associations: general | es |
dc.title | Spiral structure in the outer galactic disk. I. The third galactic quadrant | en |
dc.type | Articulo | es |
sedici.identifier.other | doi:10.1086/524003 | es |
sedici.identifier.other | eid:2-s2.0-40249103062 | es |
sedici.identifier.issn | 0004-637X | es |
sedici.creator.person | Vázquez, Rubén Ángel | es |
sedici.creator.person | May, Jorge | es |
sedici.creator.person | Carraro, Giovanni | es |
sedici.creator.person | Bronfman, Leonardo | es |
sedici.creator.person | Moitinho, André | es |
sedici.creator.person | Baume, Gustavo | es |
sedici.subject.materias | Ciencias Astronómicas | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Astronómicas y Geofísicas | es |
mods.originInfo.place | Instituto de Astrofísica de La Plata | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | The Astrophysical Journal | es |
sedici.relation.journalVolumeAndIssue | vol. 672, no. 2 | es |
sedici.rights.sherpa | * RoMEO: verde* Pre-print del autor: can* Post-print del autor: can* Versión de editor/PDF:can* Condiciones:>>On any website, arXiv, scientific social networks (except Research Gate) or non-commercial open access repository.>>Publisher's version/PDF may be used on any website or authors' institutional repository>>Deben reconocerse el copyright y la fuente editorial>>Debe ir enlazado a la versión de editor>>La versión de editor/PDF puede utilizarse>>Authors depositing in arXiv must they choose the first licence statement offered by arXiv when uploading their article � a "non-exclusive licence to distribute">>Publisher last contacted on 10/02/2016>>Publisher last reviewed on 15/08/2017* Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0004-637X/es/ |