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- W1912953289 endingPage "130" @default.
- W1912953289 startingPage "130" @default.
- W1912953289 abstract "Central compact objects (CCOs) are a handful of young neutron stars found at the center of supernova remnants (SNRs). They show high thermal X-ray luminosities but no radio emission. Spin-down rate measurements of the three CCOs with X-ray pulsations indicate surface dipole fields much weaker than those of typical young pulsars. To investigate if CCOs and known radio pulsars are objects at different evolutionary stages, we carried out a census of all weak-field (<1e11 G) isolated radio pulsars in the Galactic plane to search for CCO-like X-ray emission. None of the 12 candidates is detected at X-ray energies, with luminosity limits of 1e32-1e34 erg/s. We consider a scenario in which the weak surface fields of CCOs are due to rapid accretion of supernova materials and show that as the buried field diffuses back to the surface, a CCO descendant is expected to leave the P-Pdot parameter space of our candidates at a young age of a few times 10kyr. Hence, the candidates are likely to be just old ordinary pulsars in this case. We suggest that further searches for orphaned CCO, which are aged CCOs with parent SNRs dissipated, should include pulsars with stronger magnetic fields." @default.
- W1912953289 created "2016-06-24" @default.
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- W1912953289 date "2015-07-27" @default.
- W1912953289 modified "2023-10-06" @default.
- W1912953289 title "HUNTING FOR ORPHANED CENTRAL COMPACT OBJECTS AMONG RADIO PULSARS" @default.
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- W1912953289 doi "https://doi.org/10.1088/0004-637x/808/2/130" @default.
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