Effects of neutron-star superconductivity on magnetic monopoles and core field decay

Details Effects of neutron-star superconductivity on magnetic monopoles and core field decay Effects of neutron-star superconductivity on magnetic monopoles and core field decay

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..33.2084h&link_type=abstract

Physical Review D (Particles and Fields), Volume 33, Issue 8, 15 April 1986, pp.2084-2091

Physics

29

Pulsars, Neutron Stars, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

From the magnetic properties of old neutron stars we propose that an observation of a sufficiently old pulsar limits any ``grand unified theory'' heavy magnetic monopole flux in the pulsar neighborhood to below 5×10-24τ10 -2cm- 2sr-1sec-1, where τ10 is the age (in 1010 yr) of the pulsar's present magnetic field and monopole speeds are ~10-3 c. For the millisecond pulsar PSR 1937+214 a major improvement over the Parker limit is obtained, which is also better than various limits from monopole catalysis of baryon decay, provided τ10>~10-1. The consideration of monopole dynamics inside superconducting neutron-star cores leads to this conclusion.

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