Rotating star initial data for a constrained scheme in numerical relativity

Details Rotating star initial data for a constrained scheme in numerical relativity Rotating star initial data for a constrained scheme in numerical relativity

2006-03-13

arxiv.org/abs/gr-qc/0603048v2

Class.Quant.Grav.23:4545,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Minor changes and one figure added. Version accepted for publication in Class. Quant. Grav

Scientific paper

10.1088/0264-9381/23/14/001

A new numerical code for computing stationary axisymmetric rapidly rotating stars in general relativity is presented. The formulation is based on a fully constrained-evolution scheme for 3+1 numerical relativity using the Dirac gauge and maximal slicing. We use both the polytropic and MIT bag model equations of state to demonstrate that the code can construct rapidly rotating neutron star and strange star models. We compare numerical models obtained by our code and a well-established code, which uses a different gauge condition, and show that the two codes agree to high accuracy.

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