The pulsar in SN 1987A and the equation of state of dense matter

Details The pulsar in SN 1987A and the equation of state of dense matter The pulsar in SN 1987A and the equation of state of dense matter

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...362..590g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 362, Oct. 20, 1990, p. 590-594.

Astronomy and Astrophysics

Astrophysics

1

Equations Of State, Neutron Stars, Pulsars, Supernovae, Harmonics, Pions, Quarks

Scientific paper

It has recently been shown that no neutron equation of state seems able to satisfy simultaneously the two conditions Omega not less than 1.24 x 10 to the 4th/s, the period observed for the object in SN 1987A, and Mmax (Omega = 0) not less than 1.44 solar mass, the mass of the binary pulsar PSR 1913 + 16. Attention is given to the possibility that the equation of state of quark core or pion-condensed core neutron stars, or of more exotic objects (quark stars, strange stars), may satisfy these two criteria. Consideration is also given to what an oscillating, rather than rotating, scenario for the object in SN 1987A would imply for the dense matter equation of state.

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