Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarization and light curve variability: the "patchy shell" model   Recent advances in early detection and detailed monitoring of GRB afterglows
have revealed variability in some afterglow light curves. One of the leading
models for this behavior is the patchy shell model. This model attributes the
variability to random angular fluctuations in the relativistic jet energy.
These an-axisymmetric fluctuations should also impose variations in the degree
and angle of polarization that are correlated to the light curve variability.
In this letter we present a solution of the light curve and polarization
resulting from a given spectrum of energy fluctuations. We compare light curves
produced using this solution to the variable light curve of GRB 021004 and we
show that the main features in both the light curve and the polarization
fluctuations are very well reproduced by this model. We use our results to draw
constraints on the characteristics of the energy fluctuations that might have
been present in GRB 021004.

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The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph