A method for estimating the dynamical age of FR II-type radio sources from multi-frequency data

2006/09/25 by J. Machalski, K. T. Chyzy, K. T. Chyży +4 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Degrees of freedom (physics and chemistry) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Intergalactic medium #Intergalactic travel #Observational study #Radio Astronomy Observations and Technology #Radio galaxy #astro-ph

paper · pdf · doi:10.1051/0004-6361:20066121

15 pages, 9 figures included. Accepted for publication in A&A

arxiv created 2006/09/25 · openalex publication_date 2006/11/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context.Determining the ages of powerful radio sources is crucial for understanding galaxy evolution, the activity cycle of galactic nuclei, and their influence on the surrounding intergalactic medium. So far, several different methods for estimating the age of classical double radio galaxies have been proposed and widely used in the literature, although each of them faces difficulty due to observational limitations and/or freedom in choosing the underlying model assumptions.

Citations

• Is every quasar beamed?
• Constraints on the energetics and plasma composition of relativistic jets in FR II sources
• Particle acceleration at astrophysical shocks: A theory of cosmic ray origin
• Cosmic‐Ray Acceleration at Relativistic Shock Waves with a “Realistic” Magnetic Field Structure

Cited by

• Active galactic nuclei jets and multiple oblique shock acceleration: starved spectra
• Multifrequency study of a double–double radio galaxy J0028+0035
• Dynamical analysis of the complex radio structure in 3C 293: clues on a rapid jet realignment in X-shaped radio galaxies
• ChandraReveals Twin X‐Ray Jets in the Powerful FR II Radio Galaxy 3C 353