Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interactions between a massive planet and a disc   We analyse the potential migration of massive planets forming far away from
an inner planetary system. For this, we follow the dynamical evolution of the
orbital elements of a massive planet undergoing a dissipative process with a
gas disc centred around the central sun. We use a new method for
post-Newtonian, high-precision integration of planetary systems containing a
central sun by splitting the forces on a particle between a dominant central
force and additional perturbations. In this treatment, which allows us to
integrate with a very high-accuracy close encounters, all gravitational forces
are integrated directly, without resorting to any simplifying approach. After
traversing the disc a number of times, the planet is finally trapped into the
disc with a non-negligible eccentricity

2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: eess
27
The categories of this paper are: comp-gas
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The categories of this paper are: nlin
29
The categories of this paper are: funct-an