Fast pulsar in SN 1987A - Candidate for strange-quark matter

Details Fast pulsar in SN 1987A - Candidate for strange-quark matter Fast pulsar in SN 1987A - Candidate for strange-quark matter

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..63.2629g&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 63, Dec. 11, 1989, p. 2629-2632.

Physics

45

Matter (Physics), Pulsars, Quarks, Supernova 1987A, Gravitational Effects, Stellar Mass, Stellar Models, Stellar Rotation

Scientific paper

All known pulsar frequencies and masses can be accounted for by plausible neutron-star models with the exception of the new fast pulsar. To withstand its rotation frequency the central density of the star must be so high that the constituents cannot be individual hadrons. If strange-quark matter (u,d,s quarks) is the absolute ground state, a star of such matter can be stable against mass loss at the frequency of the new pulsar. An essential difference between neutron stars and strange stars is the binding force, gravity for ordinary stars, and confinement and gravity in the case of strange stars.

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