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dc.contributor.author
Ramos, Ximena Soledad

dc.contributor.author
Charalambous, Carolina

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Benítez Llambay, Pablo

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Beauge, Cristian

dc.date.available
2018-11-09T18:45:21Z
dc.date.issued
2017-06
dc.identifier.citation
Ramos, Ximena Soledad; Charalambous, Carolina; Benítez Llambay, Pablo; Beauge, Cristian; Planetary migration and the origin of the 2:1 and 3:2 (near)-resonant population of close-in exoplanets; EDP Sciences; Astronomy and Astrophysics; 602; 6-2017; 1-11
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/64119
dc.description.abstract
We present an analytical and numerical study of the orbital migration and resonance capture of fictitious two-planet systems with masses in the super-Earth range undergoing Type-I migration. We find that, depending on the flare index and proximity to the central star, the average value of the period ratio, P2/P1, between both planets may show a significant deviation with respect to the nominal value. For planets trapped in the 2:1 commensurability, offsets may reach values on the order of 0.1 for orbital periods on the order of 1 day, while systems in the 3:2 mean-motion resonance (MMR) show much smaller offsets for all values of the semimajor axis. These properties are in good agreement with the observed distribution of near-resonant exoplanets, independent of their detection method. We show that 2:1-resonant systems far from the star, such as HD 82943 and HR 8799, are characterized by very small resonant offsets, while higher values are typical of systems discovered by Kepler with orbital periods approximately a few days. Conversely, planetary systems in the vicinity of the 3:2 MMR show little offset with no significant dependence on the orbital distance. In conclusion, our results indicate that the distribution of Kepler planetary systems around the 2:1 and 3:2 MMR are consistent with resonant configurations obtained as a consequence of a smooth migration in a laminar flared disk, and no external forces are required to induce the observed offset or its dependence with the commensurability or orbital distance from the star.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences

dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Methods: Analytical
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Methods: Numerical
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Planet-Disk Interactions
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Planets And Satellites: General
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Astronomía

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Ciencias Físicas

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CIENCIAS NATURALES Y EXACTAS

dc.title
Planetary migration and the origin of the 2:1 and 3:2 (near)-resonant population of close-in exoplanets
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-19T17:39:28Z
dc.identifier.eissn
1432-0746
dc.journal.volume
602
dc.journal.pagination
1-11
dc.journal.pais
Francia

dc.description.fil
Fil: Ramos, Ximena Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Niels Bohr International Academy. Niels Bohr Institute; Dinamarca
dc.description.fil
Fil: Charalambous, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.description.fil
Fil: Benítez Llambay, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.description.fil
Fil: Beauge, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.journal.title
Astronomy and Astrophysics

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2017/06/aa29642-16/aa29642-16.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1051/0004-6361/201629642
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1704.06459
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