Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-05-29
PoS MQW7:068,2008
Astronomy and Astrophysics
Astrophysics
22 pages, 17 figures, accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2008.13417.x
By combining a model for the evolution of the radio luminosity of an individual source with the radio luminosity function, we perform a multi-dimensional Monte-Carlo simulation to investigate the cosmological evolution of the Fanaroff-Riley Class II radio galaxy population by generating large artificial samples. The properties of FRII sources are required to evolve with redshift in the artificial samples to fit the observations. Either the maximum jet age or the maximum density of the jet environment or both evolve with redshift. We also study the distribution of FRII source properties as a function of redshift. From currently available data we can not constrain the shape of the distribution of environment density or age, but jet power is found to follow a power-law distribution with an exponent of approximately -2. This power-law slope does not change with redshift out to z=0.6. We also find the distribution of the pressure in the lobes of FRII sources to evolve with redshift up to $z\sim1.2$.
Kaiser Christian R.
Wang Yadong
No associations
LandOfFree
Cosmological evolution of the Fanaroff-Riley type II source population 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 Cosmological evolution of the Fanaroff-Riley type II source population, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological evolution of the Fanaroff-Riley type II source population will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-179526