Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The role of dissipative evolution for three-planet, near-resonant
  extrasolar systems   Early dynamical evolution of close-in planetary systems is shaped by an
intricate combination of planetary gravitational interactions, orbital
migration, and dissipative effects. While the process of convergent orbital
migration is expected to routinely yield resonant planetary systems, previous
analyses have shown that the semi-major axes of initially resonant pairs of
planets will gradually diverge under the influence of long-term energy damping,
producing an overabundance of planetary period ratios in slight excess of exact
commensurability. While this feature is clearly evident in the orbital
distribution of close-in extrasolar planets, the existing theoretical picture
is limited to the specific case of the planetary three-body problem. In this
study, we generalise the framework of dissipative divergence of resonant orbits
to multi-resonant chains, and apply our results to the current observational
census of well-characterised three-planet systems. Focusing on the 2:1 and 3:2
commensurabilities, we identify three 3-planet systems, whose current orbital
architecture is consistent with an evolutionary history wherein convergent
migration first locks the planets into a multi-resonant configuration and
subsequent dissipation repels the orbits away from exact commensurability.
Nevertheless, we find that the architecture of the overall sample of multi
planetary systems is incompatible with this simple scenario, suggesting that
additional physical mechanisms must play a dominant role during the early
stages of planetary systems' dynamical evolution.

19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con