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Possible neutron star compositions
Spin evolution of neutron stars
Gmn8pTmn
Tmn= (e+P) um un+ P gmn
Einstein's field equation:
Energy-momentum tensor:
P(e)
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 frequency3 Specify metric functions 4 Compute Christoffel symbols5 Compute Ricci tensor and Ricci scalar6 Einstein tensor7 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