Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Algorry, David Gabriel | - |
| dc.creator | Navarro, Julio F. | - |
| dc.creator | Abadi, Mario Gabriel | - |
| dc.creator | Sales, Laura Virginia | - |
| dc.creator | Steinmetz, Matthias | - |
| dc.creator | Piontek, Franziska | - |
| dc.date | 2018-01-04T20:47:59Z | - |
| dc.date | 2018-01-04T20:47:59Z | - |
| dc.date | 2013-11 | - |
| dc.date | 2018-01-03T20:10:16Z | - |
| dc.date.accessioned | 2019-04-29T15:31:26Z | - |
| dc.date.available | 2019-04-29T15:31:26Z | - |
| dc.date.issued | 2013-11 | - |
| dc.identifier | Piontek, Franziska; Steinmetz, Matthias; Sales, Laura Virginia; Abadi, Mario Gabriel; Navarro, Julio F.; Algorry, David Gabriel; et al.; Counterrotating stars in simulated galaxy discs ; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 437; 4; 11-2013; 3596-3602 | - |
| dc.identifier | 0035-8711 | - |
| dc.identifier | http://hdl.handle.net/11336/32363 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/295722 | - |
| dc.description | Counterrotating stars in disc galaxies are a puzzling dynamical feature whose origin has been ascribed to either satellite accretion events or to disc instabilities triggered by deviations from axisymmetry. We use a cosmological simulation of the formation of a disc galaxy to show that counterrotating stellar disc components may arise naturally in hierarchically clustering scenarios even in the absence of merging. The simulated disc galaxy consists of two coplanar, overlapping stellar components with opposite spins: an inner counterrotating bar-like structure made up mostly of old stars surrounded by an extended, rotationally supported disc of younger stars. The opposite-spin components originate from material accreted from two distinct filamentary structures which at turn around, when their net spin is acquired, intersect delineating a ‘V’-like structure. Each filament torques the other in opposite directions; the filament that first drains into the galaxy forms the inner counterrotating bar, while material accreted from the other filament forms the outer disc. Mergers do not play a substantial role and most stars in the galaxy are formed in situ; only 9 per cent of all stars are contributed by accretion events. The formation scenario we describe here implies a significant age difference between the co- and counterrotating components, which may be used to discriminate between competing scenarios for the origin of counterrotating stars in disc galaxies. | - |
| dc.description | Fil: Algorry, David Gabriel. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | - |
| dc.description | Fil: Navarro, Julio F.. University Of Victoria; Canadá | - |
| dc.description | Fil: Abadi, Mario Gabriel. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | - |
| dc.description | Fil: Sales, Laura Virginia. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | - |
| dc.description | Fil: Steinmetz, Matthias. Astrophysikalisches Institut Potsdam; Alemania | - |
| dc.description | Fil: Piontek, Franziska. Potsdam Institute for Climate Impact Research; Alemania | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Oxford University Press | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stt2154 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/437/4/3596/1007545 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | GALAXY | - |
| dc.subject | FORMATION | - |
| dc.subject | DISCS | - |
| dc.subject | DYNAMICS | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Counterrotating stars in simulated galaxy discs | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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