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dc.date.accessioned 2022-06-27T13:48:44Z
dc.date.available 2022-06-27T13:48:44Z
dc.date.issued 1987
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/138385
dc.description.abstract We investigate low-velocity, highly interpenetrating ("hard") head-on encounters between equal mass spherical galaxies by means of full N-body simulations. We compute the energy changes (both orbital and internal) caused by the collitions strength (the perturber mass-weighted inverse of the relative velocity at closes approach, Mₚ/Vₚ). Galaxies always gain energy in the encounters, but their rms velocity decreases after the collision, extra-energy being used to expand the galaxy rather than increasing its kinetic energy. The galaxies fall into bound orbits and energy rapidly if Vₚ < 2.75 σₚ, where σₚ is the rms velocity of the galaxy at maximum overlapping. en
dc.language es es
dc.subject Galaxias es
dc.title Spherical galaxy collisions en
dc.type Articulo es
sedici.identifier.issn 1669-9521 es
sedici.title.subtitle Head-on encounters en
sedici.creator.person Navarro, J. es
sedici.creator.person Mosconi, M. es
sedici.subject.materias Astronomía es
sedici.description.fulltext true es
mods.originInfo.place Asociación Argentina de Astronomía es
sedici.subtype Comunicacion 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.relation.journalTitle Boletín de la Asociación Argentina de Astronomía es
sedici.relation.journalVolumeAndIssue no. 33 es
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ es
dc.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) 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)