Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extreme-ultraviolet Late Phase Caused by Magnetic Reconnection over
  Quadrupolar Magnetic Configuration in a Solar Flare   A second emission enhancement in warm coronal extreme-ultraviolet (EUV) lines
(about 2-7 MK) during some solar flares is known as the EUV late phase. Imaging
observations confirm that the late phase emission originates from a set of
longer or higher loops than the main flare loops. Nevertheless, some questions
remain controversial: What is the relationship between these two loop systems?
What is the heating source of late phase emission, a heating accompany the main
phase heating or occuring quite later? In this paper, we present clear evidence
for heating source in a late-phase solar flare: magnetic reconnection of
overlying field in a quadrupolar magnetic configuration. The event is triggered
by an erupted core structure that eventually leads to a coronal mass ejection
(CME). Cusp feature and its shrinkage motion high in the late-phase emission
region are the manifestation of the later phase reconnection following the main
flare reconnection. Using the enthalpy-based thermal evolution of loops (EBTEL)
model, we reasonably reproduce the late-phase emissions in some EUV lines. We
suggest that a continuous additional heating is responsible for the appearance
of the elongated EUV late phase.

13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn