Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accretion disk assembly and survival during the disruption of a neutron
  star by a black hole   We study the formation of accretion disks resulting from dynamical three
dimensional binary coalescence calculations, where a neutron star is tidally
disrupted before being swallowed by its black hole companion. By subsequently
assuming azimuthal symmetry we are able to follow the time dependence of the
disk structure for a few tenths of a second. Although the disruption of a
neutron star leads to a situation where violent instabilities redistribute mass
and angular momentum within a few dynamical timescales, enough gas mass remains
in the orbiting debris to catalyse the extraction of energy from the hole at a
rate adequate to power a short-lived gamma ray burst.

10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
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The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an