2019/09/30 by Yan Peng
Mathematics · Physics and Astronomy · #Advanced Differential Geometry Research #Astrophysics #Black Holes and Theoretical Physics #Boundary value problem #Cosmology and Gravitation Theories #Geometry #Mathematical physics #Mathematics #Mechanics #Neumann boundary condition #Physics #Quantum mechanics #Scalar (mathematics) #Scalar field #Stars #Vector field #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1016/j.nuclphysb.2019.114879
published as Nuclear Physics B 950(2020)114879 · 10 pages, 1 figure
openalex publication_date 2019/11/29 · arxiv created 2019/12/07 · arxiv updated 2019/12/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study stationary scalar field hairy configurations supported by asymptotically flat horizonless compact stars. At the star surface, we impose Neumann boundary conditions for the scalar field. With analytical methods, we obtain bounds on the frequency of scalar fields. For certain discrete frequency satisfying the bounds, we numerically get solutions of scalar hairy stars. We also disclose effects of model parameters on the discrete frequency of scalar fields.