1994/07/13 by Daksh Lohia, Lohia, Daksh
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Relativity and Gravitational Theory #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/9407014
Normal TeX, 19 pages, 3 figures available from author
arxiv created 1994/07/13 · openalex publication_date 1994/07/13 · arxiv updated 2009/11/30 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
In theories of gravitation in which dimensional parameters are dynamically induced, one can have non - topological - soliton solutions. This article reviews related topics connected with such solutions. The existence of such solutions in curved spacetime can give rise to halos of gravity (g-) balls with gravitational ``constant" having different values inside and outside the ball. Such g - balls can have quite interesting bearing on the dark matter problem over galactic and cluster scales. We describe the origin of such solutions. We speculate on related problems in Cosmology. Such objects would naturally occur in a large class of induced gravity models in which we have scalar fields non minimally coupled to the scalar curvature.