2011/06/30 by Vladimir Dzhunushaliev, V. Dzhunushaliev, Vladimir Folomeev +3 · 31 citations
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Dark matter #Geometry #Geophysics and Gravity Measurements #Mathematical physics #Mathematics #Perfect fluid #Physics #Scalar (mathematics) #Scalar field #Simple (philosophy) #Stability (learning theory) #Star (game theory) #Stars #Theoretical physics #astro-ph.SR #gr-qc
paper · pdf · doi:10.1103/physrevd.84.084025
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 84(8) (American Physical Society) · final version, to be published in PRD
arxiv created 2011/08/22 · openalex publication_date 2011/10/13 · arxiv updated 2013/05/29 · openalex created_date 2020/07/02 · openalex updated_date 2026/08/05
We consider a gravitating spherically symmetric configuration consisting of a scalar field nonminimally coupled to ordinary matter in the form of a perfect fluid. For this system we find static, regular, asymptotically flat solutions for both relativistic and nonrelativistic cases. It is shown that the presence of the nonminimal interaction leads to substantial changes both in the radial matter distribution of the star and in the star's total mass. A simple stability test indicates that, for the choice of parameters used in the paper, the solutions are unstable.