Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Fate of Scattered Planets   As gas giant planets evolve, they may scatter other planets far from their
original orbits to produce hot Jupiters or rogue planets that are not
gravitationally bound to any star. Here, we consider planets cast out to large
orbital distances on eccentric, bound orbits through a gaseous disk. With
simple numerical models, we show that super-Earths can interact with the gas
through dynamical friction to settle in the remote outer regions of a planetary
system. Outcomes depend on planet mass, the initial scattered orbit, and the
evolution of the time-dependent disk. Efficient orbital damping by dynamical
friction requires planets at least as massive as the Earth. More massive,
longer-lived disks damp eccentricities more efficiently than less massive,
short-lived ones. Transition disks with an expanding inner cavity can
circularize orbits at larger distances than disks that experience a global
(homologous) decay in surface density. Thus, orbits of remote planets may
reveal the evolutionary history of their primordial gas disks. A remote planet
with an orbital distance ~100 AU from the Sun is plausible and might explain
correlations in the orbital parameters of several distant trans-Neptunian
objects.

37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg