Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery
- Autores
- Ronco, María Paula; de Elia, Gonzalo Carlos
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Context. Several studies, observational and theoretical, suggest that planetary systems with only rocky planets are the most common in the Universe.
Aims. We study the diversity of planetary systems that might form around Sun-like stars in low-mass disks without gas-giant planets. We focus especially on the formation process of terrestrial planets in the habitable zone and analyze their water contents with the goal to determine systems of astrobiological interest. In adittion, we study the formation of planets on wide orbits because they can be detected with the microlensing technique.
Methods. N-body simulations of high resolution were developed for a wide range of surface density profiles. A bimodal distribution of planetesimals and planetary embryos with different physical and orbital configurations was used to simulate the planetary accretion process. The surface density profile combines a power law for the inside of the disk of the form r−gamma , with an exponential decay to the outside. We performed simulations adopting a disk of 0.03Msun and values of gamma = 0.5, 1 and 1.5.
Results. All our simulations form planets in the habitable zone (HZ) with different masses and final water contents depending on the three different profiles. For gamma = 0.5, our simulations produce three planets in the HZ with masses ranging from 0.03 Mearth to 0.1 Mearth and water contents between 0.2 and 16 Earth oceans (1 Earth ocean = 2.8× 10−4 Mearth). For gamma = 1, three planets form in the HZ with masses between 0.18 Mearth and 0.52 Mearth and water contents from 34 to 167 Earth oceans. Finally, for gamma = 1.5, we find four planets in the HZ with masses ranging from 0.66 Mearth to 2.21 Mearth and water contents between 192 and 2326 Earth oceans. This profile shows distinctive results because it is the only one of those studied here that leads to the formation of water worlds.
Conclusions. Since planetary systems with gamma = 1 and 1.5 present planets in the HZ with suitable masses to retain a long-lived atmosphere and to maintain plate tectonics, they seem to be the most promising candidates to be potentially habitable. Particularly, these systems form Earths and Super-Earths of at least 3Mearth around the snow line, which can be discovered by the microlensing technique.
Fil: Ronco, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: de Elia, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina - Materia
-
Astrobiology
Numerical Methosd
Protoplanetary Disks - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/35454
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spelling |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water deliveryRonco, María Paulade Elia, Gonzalo CarlosAstrobiologyNumerical MethosdProtoplanetary Diskshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. Several studies, observational and theoretical, suggest that planetary systems with only rocky planets are the most common in the Universe.<br />Aims. We study the diversity of planetary systems that might form around Sun-like stars in low-mass disks without gas-giant planets. We focus especially on the formation process of terrestrial planets in the habitable zone and analyze their water contents with the goal to determine systems of astrobiological interest. In adittion, we study the formation of planets on wide orbits because they can be detected with the microlensing technique.<br />Methods. N-body simulations of high resolution were developed for a wide range of surface density profiles. A bimodal distribution of planetesimals and planetary embryos with different physical and orbital configurations was used to simulate the planetary accretion process. The surface density profile combines a power law for the inside of the disk of the form r−gamma , with an exponential decay to the outside. We performed simulations adopting a disk of 0.03Msun and values of gamma = 0.5, 1 and 1.5.<br />Results. All our simulations form planets in the habitable zone (HZ) with different masses and final water contents depending on the three different profiles. For gamma = 0.5, our simulations produce three planets in the HZ with masses ranging from 0.03 Mearth to 0.1 Mearth and water contents between 0.2 and 16 Earth oceans (1 Earth ocean = 2.8× 10−4 Mearth). For gamma = 1, three planets form in the HZ with masses between 0.18 Mearth and 0.52 Mearth and water contents from 34 to 167 Earth oceans. Finally, for gamma = 1.5, we find four planets in the HZ with masses ranging from 0.66 Mearth to 2.21 Mearth and water contents between 192 and 2326 Earth oceans. This profile shows distinctive results because it is the only one of those studied here that leads to the formation of water worlds.<br />Conclusions. Since planetary systems with gamma = 1 and 1.5 present planets in the HZ with suitable masses to retain a long-lived atmosphere and to maintain plate tectonics, they seem to be the most promising candidates to be potentially habitable. Particularly, these systems form Earths and Super-Earths of at least 3Mearth around the snow line, which can be discovered by the microlensing technique.Fil: Ronco, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: de Elia, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaEDP Sciences2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35454Ronco, María Paula; de Elia, Gonzalo Carlos; Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery; EDP Sciences; Astronomy and Astrophysics; 567; A54; 7-2014; 1-130004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201323313info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2014/07/aa23313-13/aa23313-13.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:48Zoai:ri.conicet.gov.ar:11336/35454instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:48.722CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
title |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
spellingShingle |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery Ronco, María Paula Astrobiology Numerical Methosd Protoplanetary Disks |
title_short |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
title_full |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
title_fullStr |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
title_full_unstemmed |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
title_sort |
Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery |
dc.creator.none.fl_str_mv |
Ronco, María Paula de Elia, Gonzalo Carlos |
author |
Ronco, María Paula |
author_facet |
Ronco, María Paula de Elia, Gonzalo Carlos |
author_role |
author |
author2 |
de Elia, Gonzalo Carlos |
author2_role |
author |
dc.subject.none.fl_str_mv |
Astrobiology Numerical Methosd Protoplanetary Disks |
topic |
Astrobiology Numerical Methosd Protoplanetary Disks |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Context. Several studies, observational and theoretical, suggest that planetary systems with only rocky planets are the most common in the Universe.<br />Aims. We study the diversity of planetary systems that might form around Sun-like stars in low-mass disks without gas-giant planets. We focus especially on the formation process of terrestrial planets in the habitable zone and analyze their water contents with the goal to determine systems of astrobiological interest. In adittion, we study the formation of planets on wide orbits because they can be detected with the microlensing technique.<br />Methods. N-body simulations of high resolution were developed for a wide range of surface density profiles. A bimodal distribution of planetesimals and planetary embryos with different physical and orbital configurations was used to simulate the planetary accretion process. The surface density profile combines a power law for the inside of the disk of the form r−gamma , with an exponential decay to the outside. We performed simulations adopting a disk of 0.03Msun and values of gamma = 0.5, 1 and 1.5.<br />Results. All our simulations form planets in the habitable zone (HZ) with different masses and final water contents depending on the three different profiles. For gamma = 0.5, our simulations produce three planets in the HZ with masses ranging from 0.03 Mearth to 0.1 Mearth and water contents between 0.2 and 16 Earth oceans (1 Earth ocean = 2.8× 10−4 Mearth). For gamma = 1, three planets form in the HZ with masses between 0.18 Mearth and 0.52 Mearth and water contents from 34 to 167 Earth oceans. Finally, for gamma = 1.5, we find four planets in the HZ with masses ranging from 0.66 Mearth to 2.21 Mearth and water contents between 192 and 2326 Earth oceans. This profile shows distinctive results because it is the only one of those studied here that leads to the formation of water worlds.<br />Conclusions. Since planetary systems with gamma = 1 and 1.5 present planets in the HZ with suitable masses to retain a long-lived atmosphere and to maintain plate tectonics, they seem to be the most promising candidates to be potentially habitable. Particularly, these systems form Earths and Super-Earths of at least 3Mearth around the snow line, which can be discovered by the microlensing technique. Fil: Ronco, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina Fil: de Elia, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina |
description |
Context. Several studies, observational and theoretical, suggest that planetary systems with only rocky planets are the most common in the Universe.<br />Aims. We study the diversity of planetary systems that might form around Sun-like stars in low-mass disks without gas-giant planets. We focus especially on the formation process of terrestrial planets in the habitable zone and analyze their water contents with the goal to determine systems of astrobiological interest. In adittion, we study the formation of planets on wide orbits because they can be detected with the microlensing technique.<br />Methods. N-body simulations of high resolution were developed for a wide range of surface density profiles. A bimodal distribution of planetesimals and planetary embryos with different physical and orbital configurations was used to simulate the planetary accretion process. The surface density profile combines a power law for the inside of the disk of the form r−gamma , with an exponential decay to the outside. We performed simulations adopting a disk of 0.03Msun and values of gamma = 0.5, 1 and 1.5.<br />Results. All our simulations form planets in the habitable zone (HZ) with different masses and final water contents depending on the three different profiles. For gamma = 0.5, our simulations produce three planets in the HZ with masses ranging from 0.03 Mearth to 0.1 Mearth and water contents between 0.2 and 16 Earth oceans (1 Earth ocean = 2.8× 10−4 Mearth). For gamma = 1, three planets form in the HZ with masses between 0.18 Mearth and 0.52 Mearth and water contents from 34 to 167 Earth oceans. Finally, for gamma = 1.5, we find four planets in the HZ with masses ranging from 0.66 Mearth to 2.21 Mearth and water contents between 192 and 2326 Earth oceans. This profile shows distinctive results because it is the only one of those studied here that leads to the formation of water worlds.<br />Conclusions. Since planetary systems with gamma = 1 and 1.5 present planets in the HZ with suitable masses to retain a long-lived atmosphere and to maintain plate tectonics, they seem to be the most promising candidates to be potentially habitable. Particularly, these systems form Earths and Super-Earths of at least 3Mearth around the snow line, which can be discovered by the microlensing technique. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/35454 Ronco, María Paula; de Elia, Gonzalo Carlos; Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery; EDP Sciences; Astronomy and Astrophysics; 567; A54; 7-2014; 1-13 0004-6361 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/35454 |
identifier_str_mv |
Ronco, María Paula; de Elia, Gonzalo Carlos; Diversity of planetary systems in low-mass disks: Terrestrial-type planet formation and water delivery; EDP Sciences; Astronomy and Astrophysics; 567; A54; 7-2014; 1-13 0004-6361 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201323313 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2014/07/aa23313-13/aa23313-13.html |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
EDP Sciences |
publisher.none.fl_str_mv |
EDP Sciences |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614498603761664 |
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13.070432 |