Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining the Evolutionary Fate of Central Compact Objects: "Old"
  Radio Pulsars in Supernova Remnants   Central compact objects (CCOs) constitute a population of radio-quiet,
slowly-spinning ($\ge$100 ms) young neutron stars with anomalously high thermal
X-ray luminosities. Their spin-down properties imply weak dipole magnetic
fields ($\sim$$10^{10-11}$ G) and characteristic ages much greater than the
ages of their host supernova remnants (SNRs). However, CCOs may possess strong
"hidden" internal magnetic fields that may re-emerge on timescales $\gtrsim$10
kyr, with the neutron star possibly activating as a radio pulsar in the
process. This suggests that the immediate descendants of CCOs may be
masquerading as slowly spinning "old" radio pulsars. We present an X-ray survey
of all ordinary radio pulsars within 6 kpc that are positionally coincident
with Galactic SNRs in order to test the possible connection between the
supposedly old, but possibly very young pulsars, and the SNRs. None of the
targets exhibits anomalously high thermal X-ray luminosity, suggesting that
they are genuine old ordinary pulsars unrelated to the superposed SNRs. This
implies that CCOs are either latent radio pulsars that activate long after
their SNRs dissipate or they remain permanently radio-quiet. The true
descendants of CCOs remain at large.

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The categories of this paper are: hep-ph
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: physics
16
The categories of this paper are: stat
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: eess