2010/06/04 by C. S. S. Brandao, Cláudio Soriano de Souza Brandão, J. C. N. de Araújo +1 · 3 citations
Computer Science · Physics and Astronomy · #Black Holes and Theoretical Physics #Computational Physics and Python Applications #Galaxies: Formation, Evolution, Phenomena #astro-ph.IM #gr-qc
paper · pdf · doi:10.1088/0004-637x/717/2/849
published as ApJ v717 p849 (2010) · 33 pages and 14 figures - To appear in The Astrophysical Journal
arxiv created 2010/06/04 · openalex publication_date 2010/06/18 · arxiv updated 2010/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
In the standard scenario of the Newtonian gravity, a late-type galaxy (i.e., a spiral galaxy) is well described by a disk and a bulge embedded in a halo mainly composed of dark matter. In Brownstein–Moffat gravity, there is a claim that late-type galaxy systems would not need to have halos, avoiding as a result the dark matter problem, i.e., a modified gravity (non-Newtonian) would account for the galactic structure with no need of dark matter. In the present paper, we probe this claim via numerical simulations. Instead of using a "static galaxy," where the centrifugal equilibrium is usually adopted, we probe the Brownstein–Moffat gravity dynamically via numerical N -body simulations.