Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Influence of the Mass Definition in the Stability of Axisymmetric
  Relativistic Thin Disks   The study on the stability of relativistic disks is one of the most important
criteria for the characterization of astrophysically relevant galactic or
accretion disks models. In this paper, we perform an analysis of the stability
of static axisymmetric relativistic thin disks, by introducing a first-order
perturbation into the energy-momentum tensor of the fluid. The formalism is
applied to three particular models built with the aid of the
displace-cut-reflect (DCR) method, and previously considered in literature
(Ujevic and Letelier, 2004), but modifying the mass criteria, i.e., using the
Komar mass instead of the total surface mass. Under this conditions, it is
found that the total mass values are independent of the parameters of the
DCR-method, which let us choose the boundary condition for the cutoff radius,
such that it takes the maximum value that allows an appreciable and
well-behaved perturbation on the disk. As a general result, we found that the
Komar mass is more appropriate to define the cutoff radius.

6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph