Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pasa...16..124j&link_type=abstract
Publications Astronomical Society of Australia, vol. 16, no. 2, p. 124-129
Astronomy and Astrophysics
Astronomy
6
Galaxy Evolution And Jets, Quasars, Radio Continuum
Scientific paper
Powerful extragalactic radio sources are characterised by kpc-scale synchrotron emission associated with highly-collimated outflows of relativistic plasma. It is hypothesized that this outflowing plasma is powered by accretion processes concommitant with a central massive black hole. The radio morphologies of these sources comprise jets, lobes and for the most powerful sources, hotspots. At first sight, powerful extragalactic radio sources are a mixed group of objects, with the result that only some gross property delineates them further (e.g. steep-spectrum or flat-spectrum). However, there is accumulating observational evidence which suggests that it is the orientation of the radio axis to our line-of-sight which dictates their observed characteristics. This orientation-dependence has been incorporated into `unified schemes', which physically-link apparently disparate radio source types via the random orientation of a `parent' population on the plane of the sky. This paper summarises the `dual-population unified scheme' paradigm investigated by and discusses some of its implications with respect to radio source cosmology.
No associations
LandOfFree
Radio source evolution and unified schemes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radio source evolution and unified schemes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio source evolution and unified schemes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1016460