Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the "canonical behaviour" of the X-ray afterglows of the Gamma Ray
  Bursts observed with Swift's XRT   The "canonical behaviour" of the early X-ray afterglows of long-duration
Gamma-Ray Bursts (GRBs) --observed by the X-Ray Telescope of the SWIFT
satellite-- is precisely the one predicted by the Cannonball model of GRBs.

33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph