Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolutions of stellar-mass black hole hyperaccretion systems in the
  center of gamma-ray bursts   A neutrino-dominated accretion disk around a stellar-mass black hole (BH) can
power a gamma-ray burst (GRB) via annihilation of neutrinos launched from the
disk. For the BH hyperaccretion system, high accretion rate should trigger the
violent evolution of the BH's characteristics, which further leads to the
evolution of the neutrino annihilation luminosity. In this paper, we consider
the evolution of the accretion system to analyze the mean time-dependent
neutrino annihilation luminosity with the different mean accretion rates and
initial BH parameters. By time-integrating the luminosity, the total neutrino
annihilation energy with the reasonable initial disk mass can satisfy the most
of short-duration GRBs and about half of long-duration GRBs. Moreover, the
extreme Kerr BH should exist in the cental engines of some high-luminosity
GRBs. GRBs with higher energy have to request the alternative
magnetohydrodynamics processes in the centers, such as the Blandford-Znajek jet
from the accretion system or the millisecond magnetar.

2
The categories of this paper are: math
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int