Implications of the millisecond pulsar for neutron star models

Details Implications of the millisecond pulsar for neutron star models Implications of the millisecond pulsar for neutron star models

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...272..702s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 272, Sept. 15, 1983, p. 702-707.

Astronomy and Astrophysics

Astrophysics

48

Neutron Stars, Pulsars, Stellar Models, Equations Of State, Relativity, Roche Limit, Stellar Mass, Stellar Rotation

Scientific paper

The constraints imposed by the high spin rate of PSR 1937+214 on the masses and radii of nonrotating neutron stars that can be spun up to such a short period are examined. Assuming uniform rotation, it is found that none of the currently viable nuclear equations of state can be ruled out. However, the discovery of a single pulsar with period of less than about 0.5 ms would rule out all current equations of state. Assuming that PSR 1937+214 was spun up uniformly from a nonrotating progenitor requires that the maximum mass of a nonrotating star in general relativity cannot exceed 12.5 solar masses, independent of any knowledge of the equation of state. This limit decreases linearly with the shortest known period of a pulsar.

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