Moving black holes: Energy extraction, absorption cross section, and the ring of fire
Research output: Contribution to journal › Journal article › Research › peer-review
Documents
- PhysRevD.100.084001
Final published version, 959 KB, PDF document
We consider the interaction between a plane wave and a (countermoving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross section. Moving black holes absorb radiation and deposit energy in external radiation. Due to this effect, a black hole hole of mass M moving at relativistic speeds in a cold medium will appear to be surrounded by a bright "ring" of diameter 3 root 3 GM/c(2) and thickness similar to GM/c(2).
Original language | English |
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Article number | 084001 |
Journal | Physical Review D |
Volume | 100 |
Issue number | 8 |
Number of pages | 6 |
ISSN | 2470-0010 |
DOIs | |
Publication status | Published - 1 Oct 2019 |
Externally published | Yes |
- SCALAR WAVES, SCATTERING
Research areas
ID: 298639872