Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-11-12
Astronomy and Astrophysics
Astrophysics
A contribution to The Third Workshop on GHz-Peaked Spectrum and Compact Steep Spectrum Radio Sources, Kerastari, Greece May 28
Scientific paper
10.1071/AS02051
According to the currently accepted paradigm compact steep spectrum (CSS) sources are precursors of larger/older objects and gigahertz peaked spectrum (GPS) sources may be earlier stages of CSS sources. In this paper we confront this paradigm with the outcome of recent observations of CSS sources that are significantly weaker than those known before. In particular we claim that not all CSS sources must end up as large scale objects; if the activity phase of an AGN's central engine is shorter than the lifetime of a large scale radio source (up to ~10^8 years) the radio source associated with such an AGN decays earlier, e.g. at the CSS stage. We point out that a theory of thermal-viscous instabilities in the accretion disks of AGN may explain many features of radio sources at all stages of their evolution.
Kunert Magdalena
Marecki Andrzej
Spencer Ralph E.
No associations
LandOfFree
Location of Weak CSS Sources on the Evolutionary Path of Radio-loud AGN 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 Location of Weak CSS Sources on the Evolutionary Path of Radio-loud AGN, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Location of Weak CSS Sources on the Evolutionary Path of Radio-loud AGN will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-18792