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Semi-analytical model for planet-planet scattering. A way to obtain inclinations?

Octavio I. Miloni
Facultad de Ciencias Astronomicas y Geofisicas de la Universidad Nacional de La Plata, Argentina

Abstract
Most of the approx 35 extrasolar planetary systems with more than one planet (www.exoplanet.org) show high eccentricities compared with standard formation theories (Kokubo & Ida, 2002). Nowadays, it is well accepted that these types of eccentric orbits may be caused by transfer of angular momentum in a process of ejection of planets that the system originally contains and were lost due gravitational instabilities (Raymond et al. 2009; Ford & Rasio 1996). Such a phenomenon is known as planet-planet scattering. However, there are not much works devoted to inclinations (parameter intrinsically undetermined by inspection from radial velocities) In this talk, we present a method which permit us to obtain some type of correlation between eccentricities and inclinations.

2010 February 03, 13:30

IA/U.Porto
Centro de AstrofÝsica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Instituto de Astrof├şsica e Ci├¬ncias do Espa├žo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda├ž├úo para a Ci├¬ncia e a Tecnologia
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