| dc.creator | Navarro, J. | |
| dc.creator | Mosconi, M. | |
| dc.date | 1987 | |
| dc.date | 2022-06-27T13:48:44Z | |
| dc.date.accessioned | 2023-07-15T07:17:13Z | |
| dc.date.available | 2023-07-15T07:17:13Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/138385 | |
| dc.identifier | issn:1669-9521 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7479915 | |
| dc.description | 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. | |
| dc.description | Asociación Argentina de Astronomía | |
| dc.format | application/pdf | |
| dc.language | es | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Astronomía | |
| dc.subject | Galaxias | |
| dc.title | Spherical galaxy collisions : Head-on encounters | |
| dc.type | Articulo | |
| dc.type | Comunicacion | |
