DYBCZYŃSKI Piotr A., LETO Giuseppe, JAKUBIK Marian, PAULECH Tomas, NESLUSAN Lubos
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Image caption::
The evolution of the population of the inner, outer and whole Oort cloud during the first gigayear.
Description:
The understanding of the origin of cometary reservoirs is very important in developing
the detailed unified theory of Solar system formation and evolution. Numerical simulation is the
most effective and reliable approach in studying the dynamical evolution of the system, especially
of the cometary cloud. In these works, we performed the numerical simulation of evolution
of the proto-planetary disk represented by 10038 test particles, the largest number till now.
The simulation covered the period of the dynamical evolution for the first two gigayears.
Our computational tasks were run in GRID environment and lasted about 5 months on
240 CPUs. We established an international cooperation with other institutes
(one from Poland and one from Italy), which was crucial for successful completion of our goal.
Among the other interesting results we found the low efficiency in formation of the cometary cloud,
the strongly dominant high galactic inclinations of cometary orbits and also the fact,
that the comets came to cometary cloud not only from the Uranus-Neptune region, but also
from the Jupiter-Saturn region and from the transneptunian region, as well.
Reference:
Astronomy and Astrophysics 487, 345-355 (2008); MNRAS 391, 1350-1358 (2008)
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SAS
