Regular Article - Theoretical Physics
Hawking radiation screening and Penrose process shielding in the Kerr black hole
School of Mathematical Sciences, Dublin Institute of Technology, Dublin 8, Ireland
Accepted: 16 March 2016
Published online: 31 March 2016
The radial motion of massive particles in the equatorial plane of a Kerr black hole is considered. Screening of the Hawking radiation and shielding of the Penrose process are examined (both inside and outside the ergosphere) and their effect on the evaporation of the black hole is studied. In particular, the locus and width of a classically forbidden region and their dependence on the particle’s angular momentum and energy is analysed. Tunneling of particles between the boundaries of this region is considered and the transmission coefficient determined.
© The Author(s), 2016