Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The optically thick rotating magnetic wind from a massive white dwarf
  merger product   WD J005311 is a newly identified white dwarf (WD) in a mid-infrared nebula.
The spectroscopic observation indicates the existence of a neon-enriched
carbon/oxygen wind with a terminal velocity of $v_{\infty,\rm obs}\sim
16,000\,\rm km\,s^{-1}$ and a mass loss rate of $\dot M_{\rm obs}\sim 3.5\times
10^{-6}\,M_\odot$ yr$^{-1}$. Here we consistently explain the properties of WD
J005311 using a newly constructed wind solution, where the optically thick
outflow is launched from the carbon burning shell on an oxygen-neon core and
accelerated by the rotating magnetic field to become supersonic and unbound
well below the photosphere. Our model implies that WD J005311 has a mass of
$M_* \sim 1.1\mbox{-}1.3\,M_\odot$, a magnetic field of $B_* \sim
(2\mbox{-}5)\times 10^7\,\rm G$, and a spin angular frequency of $\Omega \sim
0.2\mbox{-}0.5 \,\rm s^{-1}$. The large magnetic field and fast spin support
the carbon-oxygen WD merger origin. WD J005311 will neither explode as a type
Ia supernova nor collapse into a neutron star. If the wind continues to blow
another few kyr, WD J005311 will spin down significantly and join to the known
sequence of slowly-rotating magnetic WDs. Otherwise it may appear as a
fast-spinning magnetic WD and could be a new high energy source.

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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas