Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SGRs and AXPs as massive fast rotating highly magnetized white dwarfs:
  the case of SGR 0418+5729   We describe one of the so-called low magnetic field magnetars SGR 0418+5729,
as a massive fast rotating highly magnetized white dwarf following Malheiro et.
al. 2012. We give bounds for the mass, radius, moment of inertia, and magnetic
field for these sources, by requesting the stability of realistic general
relativistic uniformly rotating configurations. Based on these parameters, we
improve the theoretical prediction of the lower limit of the spin-down rate of
SGR 0418+5729. In addition, we compute the electron cyclotron frequencies
corresponding to the predicted surface magnetic fields.

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The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ph
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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: cs
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con