Moments of inertia for neutron and strange stars: Limits derived for the Crab pulsar

  title={Moments of inertia for neutron and strange stars: Limits derived for the Crab pulsar},
  author={Michał Bejger and Paweł Haensel},
  journal={Astronomy and Astrophysics},
Recent estimates of the properties of the Crab nebula are used to derive constraints on the moment of inertia, mass and radius of the pulsar. To this purpose, we employ an approximate formula combining these three parameters. Our "empirical formula" I ' a(x)MR 2 ,w herex = (M=M)(km=R), is based on numerical results obtained for thirty theoretical equations of state of dense matter. The functions a(x) for neutron stars and strange stars are qualitatively dierent. For neutron stars aNS(x)= x=(0:1… 

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