Radio jets: properties, life and impact
arXiv:2001.02675 · doi:10.1017/S1743921320002999
Abstract
Our view of the properties of extragalactic radio jets and the impact they have on the host galaxy has expanded in the recent years. This has been possible thanks to the data from new or upgraded radio telescopes. This review briefly summarises the current status of the field and describes some of the exciting recent results and the surprises they have brought. In particular, the physical properties of radio jets as function of their radio power will be discussed together with the advance made in understanding the life-cycle of radio sources. The evolutionary stage (e.g. newly born, dying, restarted) of the radio AGN can be derived from their morphology and properties of the radio spectra. The possibilities offered by the new generation of low-frequency radio telescopes make it possible to derive (at least to first order) the time-scale spent in each phase. The presence of a cycle of activity ensures a recurrent impact of the radio jets on their surrounding inter-stellar and inter-galactic medium and, therefore, their relevance for AGN feedback. The last part is dedicated to the recent results showing the effect of jets on the surrounding galactic medium. The predictions made by numerical simulations on the impact of a radio jet (and in particular a newly born jet) on a clumpy medium describe well what is seen by the observations. The high resolution studies of jet-driven outflows of cold gas (HI and molecular) has provided new important addition both in term of quantifying the impact of the outflows and their relevance for feedback as well as for providing an unexpected view of the physical conditions of the gas under these extreme conditions.
14 pages, 7 figures, Invited review IAU Symp 356 "Nuclear Activity in Galaxies Across Cosmic Time", ed. M. Povic et al
References in corpus (19)
- Science With The Australian Square Kilometre Array Pathfinder
- Fast outflows in compact radio sources: evidence for AGN-induced feedback in the early stages of radio source evolution
- Raining on black holes and massive galaxies: the top-down multiphase condensation model
- Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
- The Many Routes to AGN Feedback
- Prevalence of radio jets associated with galactic outflows and feedback from quasars
- Jet acceleration of the fast molecular outflows in the Seyfert galaxy IC5063
- Luminosity function, sizes and FR dichotomy of radio-loud AGN
- On the two main classes of Active Galactic Nuclei
- Cycling of the powerful AGN in MS 0735.6+7421 and the duty cycle of radio AGN in Clusters
- Storm in a "Teacup": a radio-quiet quasar with ~10kpc radio-emitting bubbles and extreme gas kinematics
- The duty cycle of radio galaxies revealed by LOFAR: remnant and restarted radio source populations in the Lockman Hole
- The AGN fuelling/feedback cycle in nearby radio galaxies - I. ALMA observations and early results
- Chandra evidence for AGN feedback in the spiral galaxy NGC 6764
- LOFAR reveals the giant: a low-frequency radio continuum study of the outflow in the nearby FR I radio galaxy 3C 31
- Powerful outflows in the central parsecs of the low-luminosity Active Galactic Nucleus NGC 1386
- A Giant Metrewave Radio Telescope search for associated H{\sc i} 21\,cm absorption in GHz-peaked-spectrum sources
- VLBA Observations of Mrk 6: Probing the Jet-Lobe Connection
- Jet-driven galaxy-scale gas outflows in the hyper-luminous quasar 3C273