Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Search for >35 MeV Neutrons from the June 3, 2012 Impulsive Flare   We analyzed a highly impulsive solar flare observed on June 3, 2012. In
association with this flare, emissions of hard X-rays, high-energy gamma rays,
and neutrons were detected by the detectors onboard the FERMI, RHESSI
satellites and the International Space Station. We compared those results with
the pictures taken by the UV telescope onboard the Solar Dynamics Observatory
satellite and found the crossing structure of two magnetic ropes at two
positions on the solar surface almost at the same time. High-energy gamma rays
were detected by the Fermi Large Area Telescope satellite, implying that the
impulsive flare was one of a major source of proton acceleration processes on
the solar surface. At the beginning of research, impulsive solar flares were
considered to be the main source of particle acceleration processes; our
current observations have confirmed this hypothesis.

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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat