Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multipole expansions for energy and momenta carried by gravitational
  waves   We present expressions for the energy, linear momentum and angular momentum
carried away from an isolated system by gravitational radiation based on
spin-weighted spherical harmonics decomposition of the Weyl scalar $\Psi_4$. We
also show that the expressions derived are equivalent to the common expressions
obtained when using a framework based on perturbations of a Schwazschild
background. The main idea is to collect together all the different expressions
in a uniform and consistent way. The formulae presented here are directly
applicable to the calculation of the radiated energy, linear momentum and
angular momentum starting from the gravitational waveforms which are typically
extracted from numerical simulations.

36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th