Abstract
We have developed a highly accurate numerical code capable of solving the coupled Einstein-Klein-Gordon system, in order to construct rotating boson stars in general relativity. Free fields and self-interacting fields, with quartic and sextic potentials, are considered. In particular, we present the first numerical solutions of rotating boson stars with rotational quantum number and , as well as the first determination of the maximum mass of free-field boson stars with . We have also investigated timelike geodesics in the spacetime generated by a rotating boson star for , 2 and 3. A numerical integration of the geodesic equation has enabled us to identify a peculiar type of orbit: the zero-angular-momentum ones. These orbits pass very close to the center and are qualitatively different from orbits around a Kerr black hole. Should such orbits be observed, they would put stringent constraints on astrophysical compact objects like the Galactic center.
18 More- Received 19 May 2014
DOI:https://doi.org/10.1103/PhysRevD.90.024068
© 2014 American Physical Society