Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery

Context. Several observational works have shown the existence of Jupiter-mass planets covering a wide range of semi-major axes around Sun-like stars. Aims. We aim to analyse the planetary formation processes around Sun-like stars that host a Jupiter-mass planet at intermediate distances ranging fr...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Darriba, Luciano Ariel, Elía, Gonzalo Carlos de, Guilera, Octavio Miguel, Brunini, Adrián
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2017
Materias:	Ciencias Astronómicas Astrobiology Methods: numerical Planets and satellites: Dynamical evolution and stability Planets and satellites: Formation Planets and satellites: Terrestrial planets
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/87203
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-87203
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 Astrobiology Methods: numerical Planets and satellites: Dynamical evolution and stability Planets and satellites: Formation Planets and satellites: Terrestrial planets
spellingShingle	Ciencias Astronómicas Astrobiology Methods: numerical Planets and satellites: Dynamical evolution and stability Planets and satellites: Formation Planets and satellites: Terrestrial planets Darriba, Luciano Ariel Elía, Gonzalo Carlos de Guilera, Octavio Miguel Brunini, Adrián Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
topic_facet	Ciencias Astronómicas Astrobiology Methods: numerical Planets and satellites: Dynamical evolution and stability Planets and satellites: Formation Planets and satellites: Terrestrial planets
description	Context. Several observational works have shown the existence of Jupiter-mass planets covering a wide range of semi-major axes around Sun-like stars. Aims. We aim to analyse the planetary formation processes around Sun-like stars that host a Jupiter-mass planet at intermediate distances ranging from ~1 au to 2 au. Our study focusses on the formation and evolution of terrestrial-like planets and water delivery in the habitable zone (HZ) of the system. Our goal is also to analyse the long-term dynamical stability of the resulting systems. Methods. A semi-analytic model was used to define the properties of a protoplanetary disk that produces a Jupiter-mass planet around the snow line, which is located at ~2.7 au for a solar-mass star. Then, it was used to describe the evolution of embryos and planetesimals during the gaseous phase up to the formation of the Jupiter-mass planet, and we used the results as the initial conditions to carry out N-body simulations of planetary accretion. We developed sixty N-body simulations to describe the dynamical processes involved during and after the migration of the gas giant. Results. Our simulations produce three different classes of planets in the HZ: "water worlds", with masses between 2.75 M⊕ and 3.57 M⊕ and water contents of 58% and 75% by mass, terrestrial-like planets, with masses ranging from 0.58 M⊕ to 3.8 M⊕ and water contents less than 1.2% by mass, and "dry worlds", simulations of which show no water. A relevant result suggests the efficient coexistence in the HZ of a Jupiter-mass planet and a terrestrial-like planet with a percentage of water by mass comparable to the Earth. Moreover, our study indicates that these planetary systems are dynamically stable for at least 1 Gyr. Conclusions. Systems with a Jupiter-mass planet located at 1.5-2 au around solar-type stars are of astrobiological interest. These systems are likely to harbour terrestrial-like planets in the HZ with a wide diversity of water contents.
format	Articulo Articulo
author	Darriba, Luciano Ariel Elía, Gonzalo Carlos de Guilera, Octavio Miguel Brunini, Adrián
author_facet	Darriba, Luciano Ariel Elía, Gonzalo Carlos de Guilera, Octavio Miguel Brunini, Adrián
author_sort	Darriba, Luciano Ariel
title	Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
title_short	Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
title_full	Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
title_fullStr	Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
title_full_unstemmed	Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
title_sort	migrating jupiter up to the habitable zone: earth-like planet formation and water delivery
publishDate	2017
url	http://sedici.unlp.edu.ar/handle/10915/87203
work_keys_str_mv	AT darribalucianoariel migratingjupiteruptothehabitablezoneearthlikeplanetformationandwaterdelivery AT eliagonzalocarlosde migratingjupiteruptothehabitablezoneearthlikeplanetformationandwaterdelivery AT guileraoctaviomiguel migratingjupiteruptothehabitablezoneearthlikeplanetformationandwaterdelivery AT bruniniadrian migratingjupiteruptothehabitablezoneearthlikeplanetformationandwaterdelivery
bdutipo_str	Repositorios
_version_	1764820489740484613

Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery

Ejemplares similares