Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion

Giant planet formation process is still not completely understood. The current most accepted paradigm, the core instability model, explains several observed properties of the Solar System’s giant planets but, to date, has faced difficulties to account for a formation time shorter than the observatio...

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Detalles Bibliográficos
Autores principales: Benvenuto, Omar Gustavo, Fortier, Andrea, Brunini, Adrián
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Astronómicas
Planetary formation
Accretion
Planetesimal
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93653
https://www.sciencedirect.com/science/article/pii/S0019103509002875?via%3Dihub
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93653
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Planetary formation
Accretion
Planetesimal
spellingShingle Ciencias Astronómicas
Planetary formation
Accretion
Planetesimal
Benvenuto, Omar Gustavo
Fortier, Andrea
Brunini, Adrián
Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
topic_facet Ciencias Astronómicas
Planetary formation
Accretion
Planetesimal
description Giant planet formation process is still not completely understood. The current most accepted paradigm, the core instability model, explains several observed properties of the Solar System’s giant planets but, to date, has faced difficulties to account for a formation time shorter than the observational estimates of protoplanetary disks’ lifetimes, especially for the cases of Uranus and Neptune. In the context of this model, and considering a recently proposed primordial Solar System orbital structure, we performed numerical calculations of giant planet formation. Our results show that if accreted planetesimals follow a size distribution in which most of the mass lies in 30–100 m sized bodies, Jupiter, Saturn, Uranus and Neptune may have formed according to the nucleated instability scenario. The formation of each planet occurs within the time constraints and they end up with core masses in good agreement with present estimations.
format Articulo
Preprint
author Benvenuto, Omar Gustavo
Fortier, Andrea
Brunini, Adrián
author_facet Benvenuto, Omar Gustavo
Fortier, Andrea
Brunini, Adrián
author_sort Benvenuto, Omar Gustavo
title Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
title_short Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
title_full Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
title_fullStr Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
title_full_unstemmed Forming Jupiter, Saturn, Uranus and Neptune in few million years by core accretion
title_sort forming jupiter, saturn, uranus and neptune in few million years by core accretion
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/93653
https://www.sciencedirect.com/science/article/pii/S0019103509002875?via%3Dihub
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