Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotational evolution of the Crab pulsar in the wind braking model   The pulsar wind model is updated by considering the effect of particle
density and pulsar death. It can describe both the short term and long term
rotational evolution of pulsars consistently. It is applied to model the
rotational evolution of the Crab pulsar. The pulsar is spun down by a
combination of magnetic dipole radiation and particle wind. The parameters of
the Crab pulsar, including magnetic field, inclination angle, and particle
density are calculated. The primary particle density in acceleration region is
about 10^3 times the Goldreich-Julian charge density. The lower braking index
between glitches is due to a larger outflowing particle density. This may be
glitch induced magnetospheric activities in normal pulsars. Evolution of
braking index and the Crab pulsar in P-Pdot diagram are calculated. The Crab
pulsar will evolve from magnetic dipole radiation dominated case towards
particle wind dominated case. Considering the effect of pulsar "death", the
Crab pulsar (and other normal pulsars) will not evolve to the cluster of
magnetars but downwards to the death valley. Different acceleration models are
also considered. Applications to other sources are also discussed, including
pulsars with braking index measured, and the magnetar population.

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The categories of this paper are: adap-org
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The categories of this paper are: eess
8
The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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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: q-alg