Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Is the old nova RW UMi (1956) an intermediate polar?   From photometric observations of the old nova RW UMi (1956) we have
discovered the presence of five sub-orbital periodicities. The longest period,
P1 = 54.4 min, always observed, could be the beat period between the orbital
period and the white dwarf (WD) spin period that we assume to be P2 = 33.4 min.
The other suborbital periods could be orbital sidebands with respect to P2
and/or correspond to Keplerian resonance radii. We suggest that in its
post-outburst state, characterized by higher mass transfer rate, RW UMi is an
asynchronous intermediate polar with a truncated accretion disc. If the
magnetic momentum of the WD is $\mu_{34} \sim 0.8$, in its quiescent
pre-outburst state, the nova would appear as a discless, synchronous
intermediate polar.

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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph