Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A comprehensive statistical analysis of Swift X-ray light-curves: the
  prompt-afterglow connection in Gamma-Ray Bursts   We present a comprehensive statistical analysis of Swift X-ray light-curves
of Gamma-Ray Bursts (GRBs), with more than 650 GRBs. Two questions drive this
effort: (1) Does the X-ray emission retain any kind of memory of the prompt
phase? (2) Where is the dividing line between long and short GRBs? We show that
short GRBs decay faster, are less luminous and less energetic than long GRBs,
but are interestingly characterized by very similar intrinsic absorption. Our
analysis reveal the existence of a number of relations that link the X-ray to
prompt parameters in long GRBs; short GRBs are outliers of the majority of
these 2-parameter relations. Here we concentrate on a 3-parameter
(E_pk-Egamma,iso-E_X,iso) scaling that is shared by the GRB class as a whole
(short GRBs, long GRBs and X-ray Flashes -XRFs): interpreted in terms of
emission efficiency, this scaling may imply that GRBs with high $E_{\rm{pk}}$
are more efficient during their prompt emission.

19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an