The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s 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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Detalles Bibliográficos
Autores principales:	Cuartas Restrepo, P. A., Melita, Mario Daniel, Zuluaga, J. I., Portilla Revelo, B., Sucerquia, M., Miloni, Octavio
Formato:	Articulo Preprint
Lenguaje:	Inglés
Publicado:	2016
Materias:	Astronomía Exoplanets Celestial mechanics Tidal interaction Planetary science
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/100088 https://ri.conicet.gov.ar/11336/18309
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-100088
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Astronomía Exoplanets Celestial mechanics Tidal interaction Planetary science
spellingShingle	Astronomía Exoplanets Celestial mechanics Tidal interaction Planetary science Cuartas Restrepo, P. A. Melita, Mario Daniel Zuluaga, J. I. Portilla Revelo, B. Sucerquia, M. Miloni, Octavio The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
topic_facet	Astronomía Exoplanets Celestial mechanics Tidal interaction Planetary science
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 low impact 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.
format	Articulo Preprint
author	Cuartas Restrepo, P. A. Melita, Mario Daniel Zuluaga, J. I. Portilla Revelo, B. Sucerquia, M. Miloni, Octavio
author_facet	Cuartas Restrepo, P. A. Melita, Mario Daniel Zuluaga, J. I. Portilla Revelo, B. Sucerquia, M. Miloni, Octavio
author_sort	Cuartas Restrepo, P. A.
title	The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
title_short	The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
title_full	The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
title_fullStr	The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
title_full_unstemmed	The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations
title_sort	spin-orbit evolution of gj 667c system: the effect of composition and other planet’s perturbations
publishDate	2016
url	http://sedici.unlp.edu.ar/handle/10915/100088 https://ri.conicet.gov.ar/11336/18309
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The Spin-Orbit Evolution of GJ 667C System: The Effect of Composition and Other Planet’s Perturbations

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