Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new method to study energy-dependent arrival delays on photons from
  astrophysical sources   Correlations between the arrival time and the energy of photons emitted in
outbursts of astrophysical objects are predicted in quantum and classical
gravity scenarios and can appear as well as a result of complex acceleration
mechanisms responsible for the photon emission at the source. This paper
presents a robust method to study such correlations that overcomes some
limitations encountered in previous analysis, and is based on a Likelihood
function built from the physical picture assumed for the emission, propagation
and detection of the photons. The results of the application of this method to
a flare of Markarian 501 observed by the MAGIC telescope are presented. The
method is also applied to a simulated dataset based on the flare of PKS
2155-304 recorded by the H.E.S.S. observatory to proof its applicability to
complex photon arrival time distributions.

30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex