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Central compact objects and their magnetic fields

Published online by Cambridge University Press:  20 March 2013

Wynn C. G. Ho
Wynn C. G. Ho*
Affiliation:
School of Mathematics, University of Southampton, Southampton, SO17 1BJ, UK email: wynnho@slac.stanford.edu
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Abstract

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Central compact objects (CCOs) are neutron stars that are found near the center of supernova remnants, and their association with supernova remnants indicates these neutron stars are young (≲ 104 yr). Here we review the observational properties of CCOs and discuss implications, especially their inferred magnetic fields. X-ray timing and spectral measurements suggest CCOs have relatively weak surface magnetic fields (~ 1010 − 1011 G). We argue that, rather than being created with intrinsically weak fields, CCOs are born with strong fields and we are only seeing a weak surface field that is transitory and evolving. This could imply that CCOs are one manifestation in a unified picture of neutron stars.

Keywords

pulsars: generalstars: magnetic fieldstars: neutronsupernova remnants

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