Collimated winds from active galactic nuclei
Abstract
A mechanism of astronomical jet-acceleration via radiation pressure momentum addition and the hydrodynamic approach in the twin-exhaust model are proposed. Expansion of the gas at the exit of the accretion funnel may synergistically interact with the funnel's intense radiation field to act as a nozzle against the gravitational field of the central object. The model shows that wind theory can be suitably scaled to explain the presence of supersonic flows from the inner core of radio galaxies; in contrast to jets emerging from quasars, it is not clear if jets emerging from the center of radio galaxies are relativistic in their inner part. Propagation of jets out of the potential well of the parent galaxy may lead to peculiar and observable features related to the physical conditions in the jet itself and in the central engine.
- Publication:
-
X-ray and UV Emission from Active Galactic Nuclei
- Pub Date:
- October 1984
- Bibcode:
- 1984xue..conf..200F
- Keywords:
-
- Active Galactic Nuclei;
- Collimation;
- Particle Acceleration;
- Quasars;
- Radio Galaxies;
- Stellar Winds;
- Accretion Disks;
- Astronomical Models;
- Gravitational Effects;
- Magnetohydrodynamic Flow;
- Radiation Pressure;
- Astrophysics