Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiation from Relativistic Strongly Magnetized Outflows   Relativistic strongly magnetized winds outflowing from fast-rotating compact
objects like millisecond pulsars with surface magnetic fields of $\sim
10^{15}-10^{16}$ G are plausible sources of cosmological $\gamma$-ray bursts.
In such winds, there are at least three regions where extremely powerful X-ray
and $\gamma$-ray emission may be generated. The first radiating region is the
wind photosphere that is at a distance of $\sim 10^9$ cm from the compact
object. The second radiating region is at a distance of $\sim 10^{13}-10^{14}$
cm. In this region, the striped component of the wind field is transformed into
large-amplitude electromagnetic waves. The third radiating region is at a
distance of $\sim 10^{16}-10^{17}$ cm, where deceleration of the wind due to
its interaction with an ambient medium becomes important. Radiation from all
these regions is considered.

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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: chem-ph