Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Morphology and dynamics of solar prominences from 3D MHD simulations   In this paper we present a numerical study of the time evolution of solar
prominences embedded in sheared magnetic arcades. The prominence is represented
by a density enhancement in a background stratified atmosphere and is connected
to the photosphere through the magnetic field. By solving the ideal
magnetohydrodynamic (MHD) equations in three dimensions we study the dynamics
for a range of parameters representative of real prominences. Depending on the
parameters considered, we find prominences that are suspended above the
photosphere, i.e., detached prominences, but also configurations resembling
curtain or hedgerow prominences whose material continuously connects to the
photosphere. The plasma$-\beta$ is an important parameter that determines the
shape of the structure. In many cases magnetic Rayleigh-Taylor (MRT)
instabilities and oscillatory phenomena develop. Fingers and plumes are
generated, affecting the whole prominence body and producing vertical
structures in an essentially horizontal magnetic field. However, magnetic shear
is able to reduce or even to suppress this instability.

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The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph