Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CAFE-R a code that solves the special relativistic radiation
  hydrodynamics equations   We present a 3D special-relativistic radiation hydrodynamics code. It uses
the radiative inversion scheme with the M1-closure relation for the radiation
equations, which allows the treatment of a wide range of optical depth,
temperature and opacity. The radiation field is treated in the grey-body
approximation. We present the standard 1D and 2D tests that include both
optically thin and thick scenarios, as well as hydrodynamical and radiation
pressure dominated configurations. As an application in 3D, we show the
evolution of a jet driven by radiation-hydrodynamics with a helical
perturbation. The code is expected to allow the exploration of scenarios in
high-energy astrophysics where the radiation is important, like sources of
GRBs.

29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat