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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

Most of the approx 35 extrasolar planetary systems with more than one planet ( 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

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia