2005/03/01 by Eugeny Babichev, E. Babichev, V. I. Dokuchaev +2 · 8 citations
Physics and Astronomy · #Accretion (finance) #Astrophysics #Black Holes and Theoretical Physics #Black hole (networking) #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Equation of state #Galaxies: Formation, Evolution, Phenomena #Gravitational collapse #Perfect fluid #Physics #Quantum mechanics #Rotating black hole #Schwarzschild radius #White hole #astro-ph #gr-qc
paper · pdf · doi:10.1134/1.1901765
published as J.Exp.Theor.Phys. 100 (2005) 528-538; Zh.Eksp.Teor.Fiz. 127 (2005) 597-609 · 16 pages, 4 figures
openalex publication_date 2005/03/01 · arxiv created 2005/05/31 · arxiv updated 2014/10/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The stationary, spherically symmetric accretion of dark energy onto a Schwarzschild black hole is considered in terms of relativistic hydrodynamics. The approximation of an ideal fluid is used to model the dark energy. General expressions are derived for the accretion rate of an ideal fluid with an arbitrary equation of state p = p (ρ) onto a black hole. The black hole mass was found to decrease for the accretion of phantom energy. The accretion process is studied in detail for two dark energy models that admit an analytical solution: a model with a linear equation of state, p = α(ρ − ρ 0 ), and a Chaplygin gas. For one of the special cases of a linear equation of state, an analytical expression is derived for the accretion rate of dark energy onto a moving and rotating black hole. The masses of all black holes are shown to approach zero in cosmological models with phantom energy in which the Big Rip scenario is realized.