The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations

In order to explain the main characteristics of the observed population of extrasolar planets and the giant planets in the Solar system, we need to get a clear understanding of which are the initial conditions that allowed their formation. To this end we develop a semi-analytical model for computing...

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Detalles Bibliográficos
Autores principales:	Miguel, Yamila, Guilera, Octavio Miguel, Brunini, Adrián
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2011
Materias:	Ciencias Astronómicas Planets and satellites: formation Solar system: formation
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84197
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-84197
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 Planets and satellites: formation Solar system: formation
spellingShingle	Ciencias Astronómicas Planets and satellites: formation Solar system: formation Miguel, Yamila Guilera, Octavio Miguel Brunini, Adrián The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
topic_facet	Ciencias Astronómicas Planets and satellites: formation Solar system: formation
description	In order to explain the main characteristics of the observed population of extrasolar planets and the giant planets in the Solar system, we need to get a clear understanding of which are the initial conditions that allowed their formation. To this end we develop a semi-analytical model for computing planetary systems formation based on the core instability model for the gas accretion of the embryos and the oligarchic growth regime for the accretion of the solid cores. With this model we explore not only different initial discs profiles motivated by similarity solutions for viscous accretion discs, but also consider different initial conditions to generate a variety of planetary systems assuming a large range of discs masses and sizes according to the last results in protoplanetary discs observations. We form a large population of planetary systems in order to explore the effects in the formation of assuming different discs and also the effects of type I and II regimes of planetary migration, which were found to play fundamental role in reproducing the distribution of observed exoplanets. Our results show that the observed population of exoplanets and the giant planets in the Solar system are well represented when considering a surface density profile with a power law in the inner part characterized by an exponent of -1, which represents a softer profile when compared with the case most similar to the minimum mass solar nebula model case.
format	Articulo Articulo
author	Miguel, Yamila Guilera, Octavio Miguel Brunini, Adrián
author_facet	Miguel, Yamila Guilera, Octavio Miguel Brunini, Adrián
author_sort	Miguel, Yamila
title	The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
title_short	The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
title_full	The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
title_fullStr	The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
title_full_unstemmed	The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
title_sort	role of the initial surface density profiles of the disc on giant planet formation: comparing with observations
publishDate	2011
url	http://sedici.unlp.edu.ar/handle/10915/84197
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bdutipo_str	Repositorios
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The role of the initial surface density profiles of the disc on giant planet formation: comparing with observations

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