Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-resolution radio polarimetry of Vela X   We present high-resolution 1.4 GHz Australia Telescope Compact Array
polarimetric observations of Vela X, the pulsar wind nebula of the Vela SNR. We
find that the linearly polarized emission is only partially correlated with
total intensity. There are many depolarization features, some of which are
coincident with foreground H-alpha filaments. Further study of these should
provide measurements of the magnetic field in the remnant's shell.

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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: quant-ph
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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: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nlin