Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:1705.04460)
· References in the article
· Citations to the Article (5) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (6)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Spin dynamics of close-in planets exhibiting large transit timing variations
Authors:
Delisle, J.-B.; Correia, A. C. M.; Leleu, A.; Robutel, P.
Affiliation:
AA(Observatoire de l'Université de Genève, 51 chemin des Maillettes, 1290, Sauverny, Switzerland ; ASD, IMCCE, Observatoire de Paris - PSL Research University, UPMC Univ. Paris 6, CNRS, 77 Avenue Denfert-Rochereau, 75014, Paris, France), AB(ASD, IMCCE, Observatoire de Paris - PSL Research University, UPMC Univ. Paris 6, CNRS, 77 Avenue Denfert-Rochereau, 75014, Paris, France; CIDMA, Departamento de Física, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal), AC(ASD, IMCCE, Observatoire de Paris - PSL Research University, UPMC Univ. Paris 6, CNRS, 77 Avenue Denfert-Rochereau, 75014, Paris, France; Physikalisches Institut & Center for Space and Habitability, Universitaet Bern, 3012, Bern, Switzerland), AD(ASD, IMCCE, Observatoire de Paris - PSL Research University, UPMC Univ. Paris 6, CNRS, 77 Avenue Denfert-Rochereau, 75014, Paris, France)
Publication:
Astronomy & Astrophysics, Volume 605, id.A37, 15 pp. (A&A Homepage)
Publication Date:
09/2017
Origin:
EDP Sciences
Astronomy Keywords:
celestial mechanics, planets and satellites: general
DOI:
10.1051/0004-6361/201730755
Bibliographic Code:
2017A&A...605A..37D

Abstract

We study the spin evolution of close-in planets in compact multi-planetary systems. The rotation period of these planets is often assumed to be synchronous with the orbital period due to tidal dissipation. Here we show that planet-planet perturbations can drive the spin of these planets into non-synchronous or even chaotic states. In particular, we show that the transit timing variation (TTV) is a very good probe to study the spin dynamics, since both are dominated by the perturbations of the mean longitude of the planet. We apply our model to KOI-227 b and Kepler-88 b, which are both observed undergoing strong TTVs. We also perform numerical simulations of the spin evolution of these two planets. We show that for KOI-227 b non-synchronous rotation is possible, while for Kepler-88 b the rotation can be chaotic.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints