Accelerated expansion of the Crab Nebula and evaluation of its neutron-star parameters

  title={Accelerated expansion of the Crab Nebula and evaluation of its neutron-star parameters},
  author={Michał Bejger and Paweł Haensel},
  journal={Astronomy and Astrophysics},
A model of an accelerated expansion of the Crab Nebula powered by the spinning-down Crab pulsar is proposed, in which time dependence of the acceleration is connected to the evolution of pulsar luminosity. Using recent observational data, we derive estimates of the Crab neutron-star moment of inertia. Correlations between the neutron star moment of inertia and its mass and radius allow for rough estimates of the Crab neutron-star radius and mass. In contrast to the previously used constant… 

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