Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Planet-disk interaction and orbital evolution   As planets form and grow within gaseous protoplanetary disks, the mutual
gravitational interaction between the disk and planet leads to the exchange of
angular momentum, and migration of the planet. We review current understanding
of disk-planet interactions, focussing in particular on physical processes that
determine the speed and direction of migration. We describe the evolution of
low mass planets embedded in protoplanetary disks, and examine the influence of
Lindblad and corotation torques as a function of the disk properties. The role
of the disk in causing the evolution of eccentricities and inclinations is also
discussed. We describe the rapid migration of intermediate mass planets that
may occur as a runaway process, and examine the transition to gap formation and
slower migration driven by the viscous evolution of the disk for massive
planets. The roles and influence of disk self-gravity and magnetohydrodynamic
turbulence are discussed in detail, as a function of the planet mass, as is the
evolution of multiple planet systems. Finally, we address the question of how
well global models of planetary formation that include migration are able to
match observations of extrasolar planets.

4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin