Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmic Gamma-Ray Bursts, Their Afterglows, and Their Host Galaxies   This is a review article for the book "Compact Stellar X-Ray Sources",
Editors W. Lewin and M. van der Klis, to be published by Cambridge University
Press in 2003. It covers the phenomenology of cosmic gamma-ray bursts, the
theory of their afterglows, and the observations and interpretation of their
host galaxies.

3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs