Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transverse Motions of Chromospheric Type II Spicules Observed by the New
  Solar Telescope   Using high resolution off-band \ha\ data from the New Solar Telescope and
Morlet wavelet analysis technique, we analyzed transverse motions of type II
spicules observed near the North Pole of the Sun. Our new findings are that i)
some of the observed type II spicules display kink or an inverse "Y" features,
suggesting that their origin may be due to magnetic reconnection, and ii) type
II spicules tend to display coherent transverse motions/oscillations. Also, the
wavelet analysis detected significant presence of high frequency oscillations
in type II spicules, ranging from 30 to 180 s with the the average period of 90
s. We conclude that at least some of type II spicules and their coherent
transverse motions may be caused by reconnection between large scale fields
rooted in the intergranular lanes and and small-scale emerging dipoles, a
process that is know to generate high frequency kink mode MHD waves propagating
along the magnetic field lines.

16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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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: hep-th
2
The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph