2017/06/30 by Meng-Sen Ma, Ren Zhao · 3 citations
Mathematics · Physics and Astronomy · #Ansatz #Black Holes and Theoretical Physics #Black hole (networking) #Classical mechanics #Cosmology and Gravitation Theories #Event horizon #General relativity #Geometry #Gravitation #Horizon #Kerr metric #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Noncommutative geometry #Physics #Schwarzschild metric #Schwarzschild radius #hep-th
paper · pdf · doi:10.1140/epjc/s10052-017-5217-7
published as Eur. Phys. J. C (2017) 77: 629 · 12 pages, 5 figures. to match the published version
openalex publication_date 2017/09/01 · arxiv created 2017/09/25 · arxiv updated 2017/09/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Under two different metric ansatzes, the noncommutative geometry inspired black holes (NCBH) in the framework of Rastall gravity are derived and analyzed. We consider the fluid-type matter with the Gaussian-distribution smeared mass density. Taking a Schwarzschild-like metric ansatz, it is shown that the noncommutative geometry inspired Schwarzschild black hole (NCSBH) in Rastall gravity, unlike its counterpart in general relativity (GR), is not a regular black hole. It has at most one event horizon. After showing a finite maximal temperature, the black hole will leave behind a point-like massive remnant at zero temperature. Considering a more general metric ansatz and a special equation of state of the matter, we also find a regular NCBH in Rastall gravity, which has a similar geometric structure and temperature to that of NCSBH in GR.