On the genesis of the Haumea system

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Title: On the genesis of the Haumea system
Authors: Campo Bagatin, Adriano | Benavídez, Paula Gabriela | Ortiz Moreno, José Luis | Gil-Hutton, Ricardo
Research Group/s: Astronomía y Astrofísica
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal
Keywords: Kuiper belt objects: individual: Haumea | Minor planets, asteroids: individual: Haumea | Planets and satellites: individual: Haumea
Knowledge Area: Física Aplicada
Issue Date: 11-Sep-2016
Publisher: Oxford University Press
Citation: Monthly Notices of the Royal Astronomical Society. 2016, 461(2): 2060-2067. doi:10.1093/mnras/stw1402
Abstract: The scenarios proposed in the literature for the genesis of the system formed by the dwarf planet 136108 Haumea, its two satellites and a group of some 10 bodies (the family) with semimajor axes, eccentricities and inclinations close to Haumea's values, are analysed against collisional, physical, dynamical and statistical arguments in order to assess their likelihood. All scenarios based on collisional events are reviewed under physical arguments and the corresponding formation probabilities in a collisional environment are evaluated according to the collisional evolution model alicandep. An alternative mechanism is proposed based on the potential possibility of (quasi-) independent origin of the family with respect to Haumea and its satellites. As a general conclusion the formation of the Haumea system is a low-probability event in the currently assumed frame for the evolution of the outer Solar system. However, it is possible that current knowledge is missing some key element in the whole story that may contribute to increase the odds for the formation of such a system.
Sponsor: This research was partially supported by Spanish grants AYA2011-06202-C02-01 (JLO) and AYA2011-06202-C02-02 (ACB). RGH gratefully acknowledges financial support by CONICET through PIP 114-201101-00358 and Junta de Andalucia 2012-FQM1776.
URI: http://hdl.handle.net/10045/59111
ISSN: 0035-8711 (Print) | 1365-2966 (Online)
DOI: 10.1093/mnras/stw1402
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
Peer Review: si
Publisher version: http://dx.doi.org/10.1093/mnras/stw1402
Appears in Collections:INV - Astronomía y Astrofísica - Artículos de Revistas

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