Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coronal ejections from convective spherical shell dynamos   We present a three-dimensional model of rotating convection combined with a
simplified corona in spherical coordinates. The motions in the convection zone
generate a large-scale magnetic field that gets sporadically ejected into the
outer layers above. Our model corona is approximately isothermal, but it
includes density stratification due to gravity.

4
The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
18
The categories of this paper are: econ
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The categories of this paper are: physics
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
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The categories of this paper are: math
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The categories of this paper are: nucl-th