Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disk-Anchored Magnetic Propellers - A Cure for the SW Sex Syndrome   In AE Aqr, magnetic fields transfer energy and angular momentum from a
rapidly spinning white dwarf to material in the gas stream from the companion
star, with the effect of spinning down the white dwarf while flinging the gas
stream material out of the binary system. This magnetic propeller produces a
host of observable signatures, chief among which are broad single-peaked
flaring emission lines with phase-shifted orbital kinematics. SW Sex stars have
accretion disks, but also broad single-peaked phase-shifted emission lines
similar to those seen in AE Aqr. We propose that a magnetic propeller similar
to that which operates in AE Aqr is also at work in SW Sex stars -- and to some
extent in all nova-like systems. The propeller is anchored in the inner
accretion disk, rather than or in addition to the white dwarf. Energy and
angular momentum are thereby extracted from the inner disk and transferred to
gas stream material flowing above the disk, which is consequently pitched out
of the system. This provides a non-local dissipationless angular momentum
extraction mechanism, which should result in cool inner disks with temperature
profiles flatter than $T\propto R^{-3/4}$, as observed in eclipse mapping
studies of nova-like variables. The disk-anchored magnetic propeller model
appears to explain qualitatively most if not all of the peculiar features of
the SW Sex syndrome.

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The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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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: supr-con
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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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: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: atom-ph