Charged cosmological black hole

Abstract

The cosmological black holes are black holes living not in an asymptotically flat universe but in an expanding spacetime. They have a rich dynamics in particular for their mass and horizon. In this article we perform a natural step in investigating this new type of black hole: we consider the possibility of a \textit{charged} cosmological black hole. We derive the general equations of motion governing its dynamics and report a new analytic solution for the special case of the charged Lemaître-Tolman-Bondi equations of motion that describe a charged cosmological black hole. We then study various relevant quantities for the characterization of the black hole such as the C-function, the effect of the charge on the black hole flux and the nature of the singularity. We also perform numerical investigations to strengthen our results. Finally we challenge a model of gamma ray burst within our framework.

14 pages, 4 figures, matches published version

References in corpus (10)

• McVittie's Legacy: Black Holes in an Expanding Universe
• Asymptotics with a positive cosmological constant: II. Linear fields on de Sitter space-time
• Asymptotics with a positive cosmological constant: III. The quadrupole formula
• On the classification of GRBs and their occurrence rates
• Gravitational waves from isolated systems: Surprising consequences of a positive cosmological constant
• The charged McVittie spacetime
• Cosmic Matter Flux May Turn Hawking Radiation Off
• Particle creation from the quantum stress tensor
• Cosmological black holes: the spherical perfect fluid collapse with pressure in a FRW background
• Cosmological Solutions with Charged Black Holes

Cited by in corpus (5)

• Constraints on tidal charge of the supermassive black hole at the Galactic Center with trajectories of bright stars
• Cosmological Solutions with Charged Black Holes
• Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics
• Point mass Cosmological Black Holes
• A Cosmological basis for E=mc^2