Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black holes of intermediate masses in globular clusters: constraints on
  a spin of a black hole   In this paper we determined values of a spin of central black holes of the
intermediate masses in globular clusters. For determination of value of a spin
we used the known relation between the kinetic power of the relativistic jet
and observable radio-luminosity of the region near to a central black hole, and
our estimates have based on the known Blandford-Znajek mechanism. The value of
a magnetic field strength near the event horizon of a black hole was derived
via magnetic coupling mechanism. Accretion rate was derived using Bondi-Hoyle
mechanism.

33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math