Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A universal scaling for short and long gamma-ray bursts:
  E_{X,iso}-E_{gamma,iso}-E_{pk}   The comprehensive statistical analysis of Swift X-ray light-curves,
collecting data from six years of operation, revealed the existence of a
universal scaling among the isotropic energy emitted in the rest frame 10-10^4
keV energy band during the prompt emission (E_{gamma,iso}), the peak of the
prompt emission energy spectrum (E_{pk}), and the X-ray energy emitted in the
0.3-10 keV observed energy band (E_{X,iso}). In this paper we show that this
three-parameter correlation is robust and does not depend on our definition of
E_{X,iso}. It is shared by long, short, and low-energetic GRBs, differently
from the well-known E_{gamma,iso}-E_{pk} correlation. We speculate that the
ultimate physical property that regulates the GRB properties is the outflow
Lorentz factor.

11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn