Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible Production of Solar Spicules by Microfilament Eruptions   We examine Big Bear Solar Observatory (BBSO) Goode Solar Telescope (GST)
high-spatial resolution (0''.06), high-cadence (3.45 s), H-alpha-0.8 Angstrom
images of central-disk solar spicules, using data of Samanta et al. (2019). We
compare with coronal-jet chromospheric-component observations of Sterling et
al. (2010a). Morphologically, bursts of spicules, referred to as "enhanced
spicular activities" by Samanta et al. (2019), appear as scaled-down versions
of the jet's chromospheric component. Both the jet and the enhanced spicular
activities appear as chromospheric-material strands, undergoing twisting-type
motions of ~20---50 km/s in the jet and ~20---30 km/s in the enhanced spicular
activities. Presumably, the jet resulted from a minifilament-carrying magnetic
eruption. For two enhanced spicular activities that we examine in detail, we
find tentative candidates for corresponding erupting microfilaments, but not
expected corresponding base brightenings. Nonetheless, the
enhanced-spicular-activities' interacting mixed-polarity base fields,
frequent-apparent-twisting motions, and morphological similarities to the
coronal jet's chromospheric-temperature component, suggest that erupting
microfilaments might drive the enhanced spicular activities but be hard to
detect, perhaps due to H-alpha opacity. Degrading the BBSO/GST-image resolution
with a 1''.0-FWHM smoothing function yields enhanced spicular activities
resembling the "classical spicules" described by, e.g., Beckers (1968). Thus, a
microfilament eruption might be the fundamental driver of many spicules, just
as a minifilament eruption is the fundamental driver of many coronal jets.
Similarly, a 0".5-FWHM smoothing renders some enhanced spicular activities to
resemble previously-reported "twinned" spicules, while the full-resolution
features might account for spicules sometimes appearing as 2D-sheet-like
structures.

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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: math-ph