Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations

Potentially habitable planets within the habitable zone of M dwarfs are affected by tidal interaction. We studied tidal evolution in GJ 667C using a numerical code we call TIDEV. We reviewed the problem of dynamical evolution, focusing on the effects of a rheological treatment, different composition...

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Guardado en:
Detalles Bibliográficos
Publicado: 2016
Materias:
Planet-star interactions
Planets and satellites: dynamical evolution and stability
Planets and satellites: individual: GJ 667C
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v463_n2_p1592_CuartasRestrepo
http://hdl.handle.net/20.500.12110/paper_00358711_v463_n2_p1592_CuartasRestrepo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00358711_v463_n2_p1592_CuartasRestrepo
record_format dspace
spelling paper:paper_00358711_v463_n2_p1592_CuartasRestrepo2023-06-08T15:01:43Z Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations Planet-star interactions Planets and satellites: dynamical evolution and stability Planets and satellites: individual: GJ 667C Potentially habitable planets within the habitable zone of M dwarfs are affected by tidal interaction. We studied tidal evolution in GJ 667C using a numerical code we call TIDEV. We reviewed the problem of dynamical evolution, focusing on the effects of a rheological treatment, different compositions and the inclusion of orbital perturbations on the spin-down time and the probability of becoming trapped in a low spin-orbit resonance. The composition has a noticeable effect on the spin-down time, which changes, in some cases, by almost a factor of 2 with respect to the value estimated for a reference Earth-like model. We calculated the time required to reach a low resonance value (3:2) for a configuration of six planets. Capture probabilities are affected when assuming different compositions and eccentricity variations. We chose planets b and c to evaluate the probabilities of capture in resonances below 5:2 for two compositions: Earth-like and Waterworld planets. We found that perturbations, although having a secular effect on eccentricities, have a lowimpact on capture probabilities and no effect on spin-down times. The implications of the eccentricity variations and actual habitability of the GJ 667C system are discussed. © 2016 The Authors. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v463_n2_p1592_CuartasRestrepo http://hdl.handle.net/20.500.12110/paper_00358711_v463_n2_p1592_CuartasRestrepo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Planet-star interactions
Planets and satellites: dynamical evolution and stability
Planets and satellites: individual: GJ 667C
spellingShingle Planet-star interactions
Planets and satellites: dynamical evolution and stability
Planets and satellites: individual: GJ 667C
Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
topic_facet Planet-star interactions
Planets and satellites: dynamical evolution and stability
Planets and satellites: individual: GJ 667C
description Potentially habitable planets within the habitable zone of M dwarfs are affected by tidal interaction. We studied tidal evolution in GJ 667C using a numerical code we call TIDEV. We reviewed the problem of dynamical evolution, focusing on the effects of a rheological treatment, different compositions and the inclusion of orbital perturbations on the spin-down time and the probability of becoming trapped in a low spin-orbit resonance. The composition has a noticeable effect on the spin-down time, which changes, in some cases, by almost a factor of 2 with respect to the value estimated for a reference Earth-like model. We calculated the time required to reach a low resonance value (3:2) for a configuration of six planets. Capture probabilities are affected when assuming different compositions and eccentricity variations. We chose planets b and c to evaluate the probabilities of capture in resonances below 5:2 for two compositions: Earth-like and Waterworld planets. We found that perturbations, although having a secular effect on eccentricities, have a lowimpact on capture probabilities and no effect on spin-down times. The implications of the eccentricity variations and actual habitability of the GJ 667C system are discussed. © 2016 The Authors.
title Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
title_short Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
title_full Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
title_fullStr Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
title_full_unstemmed Spin-orbit evolution of the GJ 667C system: The effect of composition and other planets' perturbations
title_sort spin-orbit evolution of the gj 667c system: the effect of composition and other planets' perturbations
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v463_n2_p1592_CuartasRestrepo
http://hdl.handle.net/20.500.12110/paper_00358711_v463_n2_p1592_CuartasRestrepo
_version_ 1768545638193037312

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