Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characteristics of EUV Solar Coronal Bright Points Using Time Series
  Analyses   Coronal bright points (CBPs) as characteristics of the solar corona are
small-scale bright features ubiquitously observed at extreme ultraviolet
passbands. Here, we focused on time series of CBPs in the periods of their
lifetimes. We used Solar Dynamic Observatory (SDO) / Atmospheric Imaging
Assembly (AIA) taken at 171 and 193 \AA. Using image processing methods, CBPs
were extracted from data and tracked during their lifetimes. We found that CBPs
observed in 171 \AA have more lifetimes than those of observed at 193 \AA. CBPs
at 171 \AA are more fluctuated in intensity and appeared as highly density
number (DN) features than 193 \AA CBPs. It was found that about $75 \%$ of CBPs
are firstly achieved their peak at 171 \AA, and then, after 12 seconds two
minutes are achieved to their peak at 193 \AA. Computing Pearson correlation
for time series of CBPs at both wavelengths where the correlation reaches at
maximum value gives information about time delay of magnetic reconnection about
40 seconds from one layer to the other one.

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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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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: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph