Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structured Jets and X-ray Plateaus in Gamma-Ray Burst Phenomena   The first multi-messenger detection of a binary neutron star merger,
GW170817, brought to the forefront the structured jet model as a way to explain
multi-wavelength observations taken more than a year after the event. Here we
show that the high-latitude emission from a structured jet can naturally
produce an X-ray plateau in gamma-ray burst (GRB) light curves, independent of
the radiation from an external shock. We calculate the radiation from a
switched-off shell featuring an angular structure in both its relativistic bulk
motion and intrinsic brightness. Our model is able to explain the shallow decay
phase (plateau) often observed in GRB X-ray light curves. We discuss the
possible contribution of the structured jet high-latitude emission to other
distinctive features of GRB X-ray light curves, and its capability to explain
the chromatic optical/X-ray light curve properties.

23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas