Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasinormal modes, quasibound states, scalar clouds, and superradiant
  instabilities of a Kerr-like black hole   We use the continued fraction method to determine the eigenfrequencies
associated with a scalar field around a Kerr-like black hole. The Kerr-like
metric considered in this article is a subclass of the general parametrization
of axisymmetric black holes proposed by Konoplya, Rezzolla and Zhidenko. In
addition to its mass $M$ and specific angular momentum $a$, the black hole
depends on a third parameter $\eta$, called the deformation parameter. We
investigate how the deformation parameter affects the quasinormal modes and the
quasibound states of a massive scalar field around the black hole. In
particular, we compute the time scales associated with the superradiant
instabilities of the scalar field in such a spacetime. The properties of
stationary scalar clouds that could be formed by these instabilities are also
discussed.

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The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci