Possible neutron star compositions Spin evolution of neutron stars.

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Presentation transcript:

Possible neutron star compositions

Spin evolution of neutron stars

G  =888  T  T  = (  +P) u  u + P g  Einstein's field equation: Energy-momentum tensor:

P(  ) Energy-momentum tensor Local inertial frame

Self-consistent solution of Einstein's equations 1 Choose a starting value for the Kepler frequency 2 Choose a starting value for the frame dragging frequency 3 Specify metric functions 4 Compute Christoffel symbols 5 Compute Ricci tensor and Ricci scalar 6 Einstein tensor 7 Compute new value for Kepler frequency -> back to 4)  Choose a model for the equation of state of superdense matter

Rotational periods of seven pulsars

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