Journal
PHYSICAL REVIEW D
Volume 96, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.084066
Keywords
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Funding
- Fundamental Research in Natural Sciences by the Ministry of Education and Science of Kazakhstan
- DFG Research Training Group 1620 Models of Gravity
- FP7, Marie Curie Actions, People, International Research Staff Exchange Scheme [IRSES-606096]
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Axisymmetric rotating radially excited boson stars are analyzed. For several fixed parameter sets, the full sets of solutions are obtained. In contrast to the nodeless boson stars, the radially excited sets of solutions do not exhibit a spiraling behavior. Instead, they form a loop when the boson frequency is varied from its maximal value given by the boson mass to a minimal value and back. Thus, for all allowed boundary data of the scalar field at the origin, there are two distinct solutions, except for the end points. While one end point corresponds to the trivial solution, the other one represents the most compact solution. The energy density and the pressures of the solutions are analyzed. A decomposition of the scalar field into spherical harmonics is performed, and stability considerations are presented.
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