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Neutron Stars

Neutron stars consist of interpenetrating neutron and proton superfluids that drag each other along as they move. The very high density and strong gravitational fields in these stars mean that these fluids must be described using Einstein’s general theory of relativity. Greg Comer and I constructed a Lorentz-covariant theory to describe this drag effect. This makes possible accurate numerical simulations of these stars.

R. Joynt and G. Comer, Phys. Rev. D 68, 023002 (2003)

Relativistic mean field model for entrainment in general relativistic superfluid neutron stars







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