Dynamical and collisional evolution of Kuiper belt binaries

We present numerical simulations of the evolution of synthetic Trans Neptunian Binaries (TNBs) under the influence of solar perturbations, tidal friction, and collisions with the population of Classical Kuiper Belt Object (KBOs). We show that these effects, acting together, have strongly sculpted th...

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Autores principales: Brunini, Adrián, Zanardi, Macarena
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93469
https://academic.oup.com/mnras/article-abstract/455/4/4487/1271552?redirectedFrom=fulltext
Aporte de:SEDICI (UNLP) de Universidad Nacional de La Plata Ver origen
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spelling I19-R120-10915-934692020-04-16T04:06:01Z http://sedici.unlp.edu.ar/handle/10915/93469 https://academic.oup.com/mnras/article-abstract/455/4/4487/1271552?redirectedFrom=fulltext issn:0035-8711 Dynamical and collisional evolution of Kuiper belt binaries Brunini, Adrián Zanardi, Macarena 2016-02 2020-04-15T18:00:28Z en Astronomía Dynamical evolution Collisional evolution Kuiper Belt Binaries We present numerical simulations of the evolution of synthetic Trans Neptunian Binaries (TNBs) under the influence of solar perturbations, tidal friction, and collisions with the population of Classical Kuiper Belt Object (KBOs). We show that these effects, acting together, have strongly sculpted the primordial population of TNBs. If the population of Classical KBOs have a power law size distribution as the ones that are inferred from the most recent deep ecliptic surveys (Adams et al. 2014, Fraser at al. 2014), the fraction of surviving binaries at present would be of only ∼ 70 % of the primordial population. The orbits of the surviving systems match reasonably well the observed sample. Because of the impulse imparted during the collisional process, only ∼ 10 % of the objects reach total orbital circularization (e ≤ 10−4 ), and very few contact binaries should exist in the Trans Neptunian region. Ultra wide binaries are naturally obtained in number and orbital distribution similar to the ones of the observed population, as a natural result of the combined action of KCTF and collisional evolution on an initial population of tight binaries. Instituto de Astrofísica de La Plata Facultad de Ciencias Astronómicas y Geofísicas Grupo de Ciencias Planetarias Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 4487-4497
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Dynamical evolution
Collisional evolution
Kuiper Belt
Binaries
spellingShingle Astronomía
Dynamical evolution
Collisional evolution
Kuiper Belt
Binaries
Brunini, Adrián
Zanardi, Macarena
Dynamical and collisional evolution of Kuiper belt binaries
topic_facet Astronomía
Dynamical evolution
Collisional evolution
Kuiper Belt
Binaries
description We present numerical simulations of the evolution of synthetic Trans Neptunian Binaries (TNBs) under the influence of solar perturbations, tidal friction, and collisions with the population of Classical Kuiper Belt Object (KBOs). We show that these effects, acting together, have strongly sculpted the primordial population of TNBs. If the population of Classical KBOs have a power law size distribution as the ones that are inferred from the most recent deep ecliptic surveys (Adams et al. 2014, Fraser at al. 2014), the fraction of surviving binaries at present would be of only ∼ 70 % of the primordial population. The orbits of the surviving systems match reasonably well the observed sample. Because of the impulse imparted during the collisional process, only ∼ 10 % of the objects reach total orbital circularization (e ≤ 10−4 ), and very few contact binaries should exist in the Trans Neptunian region. Ultra wide binaries are naturally obtained in number and orbital distribution similar to the ones of the observed population, as a natural result of the combined action of KCTF and collisional evolution on an initial population of tight binaries.
format Articulo
Articulo
author Brunini, Adrián
Zanardi, Macarena
author_facet Brunini, Adrián
Zanardi, Macarena
author_sort Brunini, Adrián
title Dynamical and collisional evolution of Kuiper belt binaries
title_short Dynamical and collisional evolution of Kuiper belt binaries
title_full Dynamical and collisional evolution of Kuiper belt binaries
title_fullStr Dynamical and collisional evolution of Kuiper belt binaries
title_full_unstemmed Dynamical and collisional evolution of Kuiper belt binaries
title_sort dynamical and collisional evolution of kuiper belt binaries
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/93469
https://academic.oup.com/mnras/article-abstract/455/4/4487/1271552?redirectedFrom=fulltext
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