Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2010-02-27
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
8 pages, 6 figures, Proceedings of "Accretion and Ejection in AGN: a global view", Como (Italy) 06/22-26/2009, ASP Conference
Scientific paper
Large scale X-ray jets that extend to >100 kpc distances from the host galaxy indicate the importance of jets interactions with the environment on many different physical scales. Morphology of X-ray clusters indicate that the radio-jet activity of a cD galaxy is intermittent. This intermittency might be a result of a feedback and/or interactions between galaxies within the cluster. Here we consider the radiation pressure instability operating on short timescales (<10^5 years) as the origin of the intermittent behaviour. We test whether this instability can be responsible for short ages (< 10^4 years) of Compact Symmetric Objects measured by hot spots propagation velocities in VLBI observations. We model the accretion disk evolution and constrain model parameters that may explain the observed compact radio structures and over-abundance of GPS sources. We also describe effects of consequent outbursts.
Celotti Annalisa
Czerny Bozena
Guainazzi Matteo
Janiuk Agnieszka
Migliori Giulia
No associations
LandOfFree
Intermittent Activity of Jets in 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 Intermittent Activity of Jets in AGN, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermittent Activity of Jets in AGN will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-110723