Bondi accretion onto cosmological black holes
  In this paper we investigate a steady accretion within the Einstein-Straus
vacuole, in the presence of the cosmological constant. The dark energy damps
the mass accretion rate and --- above certain limit --- completely stops the
steady accretion onto black holes, which in particular is prohibited in the
inflation era and after (roughly) $10^{12}$ years from Big Bang (assuming the
presently known value of the cosmological constant). Steady accretion would not
exist in the late phases of the Penrose's scenario - known as the Weyl
curvature hypothesis - of the evolution of the Universe.
