Twin-jets from the centres of galaxies

Kundt, W. ; Gopal-Krishna, (1981) Twin-jets from the centres of galaxies Astrophysics and Space Science, 75 (2). pp. 257-272. ISSN 0004-640X

Full text not available from this repository.

Official URL:

Related URL:


Conceivably, the centres of all massive galaxies emit continuous antipodal beams of relativistic particles. We shall argue that these beams consist of highly relativistic electrons and positrons. At formation, the beams plough a channel through the ambient medium; the swept-up matter repeatedly stalls the particles which thereby follow closely the ambient pressure gradient. Thereafter, when the relativistic beam particles traverse these swarms of swept-up filamentary matter, they are repeatedly forced to bypass individual filaments and radiate (in the direction of their instantaneous motion). This forward-peaked radiation pattern can explain the preferred one-sided-ness of the observed radio/optical/X-ray knots in the jets. Pressure confinement focusses the beams, and temporarily freezes the channels. Interaction with the intergalactic wind can bend the beams into the shape of a warpedU, on length scales above some 20 kpc. The observed morphologies of extragalactic radio sources find a common explanation.

Item Type:Article
Source:Copyright of this article belongs to Springer.
ID Code:76591
Deposited On:04 Jan 2012 07:13
Last Modified:04 Jan 2012 15:41

Repository Staff Only: item control page