Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global Calculations of Density Waves and Gap Formation in Protoplanetary
  Disks using a Moving Mesh   We calculate the global quasi-steady state of a thin disk perturbed by a
low-mass protoplanet orbiting at a fixed radius using extremely high-resolution
numerical integrations of Euler's equations in two dimensions. The calculations
are carried out using a moving computational domain, which greatly reduces
advection errors and allows for much longer time-steps than a fixed grid. We
calculate the angular momentum flux and the torque density as a function of
radius and compare them with analytical predictions. We discuss the
quasi-steady state after 100 orbits and the prospects for gap formation by low
mass planets.

25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat