Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarimetry and spectroscopy of the polar RX J1141.3-6410   We present the first optical polarimetric measurements of RX J1141.3-6410
which confirm that star as a polar. The circular polarization varies between 0
and 13% with the orbital period. Halpha spectroscopy shows that this line is
formed by, at least, two components: a broad and a narrow one. The phase of
maximum redshift of the broad component is shifted by 0.5 with the phase of
maximum circular polarization which is not usual for this class of stars. We
suggest a geometrical configuration for the system which could explain the main
features of the polarimetric and spectroscopic data.

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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: supr-con
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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: stat
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The categories of this paper are: nucl-th
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The categories of this paper are: chem-ph