On the relativistic Lagrange-Laplace secular dynamics for extrasolar systems
Contributo in Atti di convegno
Data di Pubblicazione:
2014
Citazione:
On the relativistic Lagrange-Laplace secular dynamics for extrasolar systems / M. Sansottera, L. Grassi, A. Giorgilli (PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION). - In: Complex planetary systems / [a cura di] Z. Knežević, A. Lemaitre. - Cambridge : Cambridge University Press, 2014 Jul. - ISBN 9781107078680. - pp. 74-77 (( Intervento presentato al 310. convegno IAU symposium : Complex planetary systems tenutosi a Namur nel 2014 [10.1017/S174392131400787X].
Abstract:
We study the secular dynamics of extrasolar planetary systems by extending the Lagrange-Laplace theory to high order and by including the relativistic effects. We investigate the long-term evolution of the planetary eccentricities via normal form and we find an excellent agreement with direct numerical integrations. Finally we set up a simple analytic criterion that allows to evaluate the impact of the relativistic effects in the long-time evolution.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
celestial mechanics; methods: analytical; secular dynamics; relativistic effects; extrasolar planetary systems; normal forms
Elenco autori:
M. Sansottera, L. Grassi, A. Giorgilli
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Link al Full Text:
Titolo del libro:
Complex planetary systems