Ion-supported tori and the origin of radio jets
Abstract
While apparently supplying tremendous power to their extended radio-emitting regions, the nuclei of most radio galaxies emit little detectable radiation. It is proposed that at the centre of each is a spinning black hole surrounded by a torus of gas too hot and tenuous to radiate efficiently. The torus anchors magnetic fields which extract rotational energy from the hole in the form of two collimated beams of relativistic particles and fields. These in turn drive the observed radio jets and hot spots. A large supply of accreting gas is thus unnecessary and radio galaxies may be interpreted as starved quasars.
- Publication:
-
Nature
- Pub Date:
- January 1982
- DOI:
- 10.1038/295017a0
- Bibcode:
- 1982Natur.295...17R
- Keywords:
-
- Black Holes (Astronomy);
- Galactic Nuclei;
- Radio Galaxies;
- Radio Jets (Astronomy);
- Toruses;
- Energy Transfer;
- High Temperature Gases;
- Ion Concentration;
- Magnetic Fields;
- Relativistic Particles;
- Astrophysics