Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-periodic Fast Propagating Magnetoacoustic Waves during the
  Magnetic Reconnection Between Solar Coronal Loops   Employing Solar Dynamics Observatory/Atmospheric Imaging Assembly (AIA)
multi-wavelength images, we have presented coronal condensations caused by
magnetic reconnection between a system of open and closed solar coronal loops.
In this Letter, we report the quasi-periodic fast magnetoacoustic waves
propagating away from the reconnection region upward across the higher-lying
open loops during the reconnection process. On 2012 January 19, reconnection
between the higher-lying open loops and lower-lying closed loops took place,
and two sets of newly reconnected loops formed. Thereafter, cooling and
condensations of coronal plasma occurred in the magnetic dip region of
higher-lying open loops. During the reconnection process, disturbances
originating from the reconnection region propagate upward across the magnetic
dip region of higher-lying loops with the mean speed and mean speed amplitude
of 200 and 30 km s$^{-1}$, respectively. The mean speed of the propagating
disturbances decreases from $\sim$230 km s$^{-1}$ to $\sim$150 km s$^{-1}$
during the coronal condensation process, and then increases to $\sim$220 km
s$^{-1}$. This temporal evolution of the mean speed anti-correlates with the
light curves of the AIA 131 and 304 \AA~channels that show the cooling and
condensation process of coronal plasma. Furthermore, the propagating
disturbances appear quasi-periodically with a peak period of 4 minutes. Our
results suggest that the disturbances represent the quasi-periodic fast
propagating magnetoacoustic (QFPM) waves originating from the magnetic
reconnection between coronal loops.

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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: stat