Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Binary star progenitors of long gamma-ray bursts   We present a binary channel for the progenitors of long gamma-ray bursts. We
test the idea of producing rapidly rotating Wolf-Rayet stars in massive close
binaries through mass accretion and consecutive quasi-chemically homogeneous
evolution. The binary channel presented here may provide a means for massive
stars to obtain the required high rotation rates. Moreover, it suggests that a
possibly large fraction of long gamma-ray bursts occurs in runaway stars. This
can have important observational consequences for both the positions of GRBs,
and their afterglow properties.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex