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dc.date.accessioned 2019-10-11T14:33:00Z
dc.date.available 2019-10-11T14:33:00Z
dc.date.issued 2001
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/83148
dc.description.abstract We present two simple dynamical models for Sagittarius based on N-body simulations of the progressive disruption of a satellite galaxy orbiting for 12.5 Gyr within a realistic Galactic potential. In both models the satellite initially has observable properties similar to those of current outlying dwarfs; in one case it is purely stellar while in the other it is embedded in an extended massive halo. The purely stellar progenitor is a King model with a total velocity dispersion of 18.9 km s-1, a core radius of 0.44 kpc and a tidal radius of 3 kpc. The initial stellar distribution in the other case follows a King profile with the same core radius, a slightly larger total velocity dispersion and similar extent. Both these models are consistent with all published data on the current Sagittarius system, they match not only the observed properties of the main body of Sagittarius, but also those reported for unbound debris at larger distances. en
dc.format.extent 529-536 es
dc.language en es
dc.subject Galaxies: individual: Sagittarius dSph es
dc.subject Galaxies: interactions es
dc.subject Galaxy: halo es
dc.subject Galaxy: structure es
dc.subject Local group es
dc.title Simple dynamical models of the Sagittarius dwarf galaxy en
dc.type Articulo es
sedici.identifier.other doi:10.1046/j.1365-8711.2001.04238.x es
sedici.identifier.other eid:2-s2.0-0008541920 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Helmi, Amina es
sedici.creator.person White, Simon David Manton es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas 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 Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 323, no. 3 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)