Electron-positron outflow from black holes
| dc.creator | van Putten, Maurice H. P. M. | |
| dc.date | 1999-11-21 | |
| dc.date.accessioned | 2026-07-07T11:34:14Z | |
| dc.date.available | 2026-07-07T11:34:14Z | |
| dc.description | Gamma-ray bursts (GRBs) appear as the brightest transient phenomena in the Universe. The nature of the central engine in GRBs is a missing link in the theory of fireballs to their stellar mass progenitors. Here it is shown that rotating black holes produce electron-positron outflow when brought into contact with a strong magnetic field. The outflow is produced by a coupling of the spin of the black hole to the orbit of the particles. For a nearly extreme Kerr black hole, particle outflow from an initial state of electrostatic equilibrium has a normalized isotropic emission of $\sim 5\times10^{48}(B/B_c)^2(M/7M_\odot)^2\sin^2θ$ erg/s, where B is the external magnetic field strength, B_c=4.4 x 10^{13}G, and M is the mass of the black hole. This initial outflow has a half-opening angle $θ\ge\sqrt{B_c/3B}$. A connection with fireballs in $γ$-ray bursts is given. | |
| dc.description | 10 pages LaTex | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9911396 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9911396 | |
| dc.identifier | Phys.Rev.Lett.84:3752-3755,2000 | |
| dc.identifier | doi:10.1103/PhysRevLett.84.3752 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198174 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Electron-positron outflow from black holes | |
| dc.type | text |