IAU Focus Meeting FM3:
Radio Galaxies: Resolving the AGN phenomenon

August 22 – 23, 2018

Scientific Rationale:

Radio galaxies provide excellent laboratories to probe physical aspects, unification, and the cosmic evolution of Active Galactic Nuclei (AGN). Thanks to recent multi-wavelength observations we are now able to separate many different physical components of radio galaxies through imaging and spectroscopy. Observations from the radio to the X-ray range can probe the ejection of matter into the jet and monitor decades of jet evolution. Gamma-ray observations have shown that radio galaxies are detectable up to the VHE range, despite unfavourable jet alignment. We observe radio galaxies out to redshifts larger than z=5, which makes them important cosmological probes. Planck maps have provided us with new insights into the populations of radio galaxies and their distributions in space in the 30-900 GHz range, NuSTAR provides high-quality spectra in the hard X-ray range, the EHT has begun mapping to the event horizon of the central black hole, and the SKA, E-ELT and other future telescopes will open up a new and vast discovery space. This meeting will bring together multiwavength observers and theorists to synthesize progress made over the last three years and define future directions.



  • Triggers of highly relativistic jets 
  • Jet collimation 
  • Radio galaxies as VHE photon emitters 
  • Knots, hotspots and other structural features 
  • The central engine 
  • Radiative versus jet mode 
  • Radio galaxy populations and statistics 
  • Origin and evolution of radio galaxies 
  • Interaction with the environment 
  • Future telescopes' view on radio galaxies



Abstract list for FM3
Poster list for FM3

Wednesday, 22. Aug.

Radio galaxy plasma and substructures
room: C
13:30 - Schwartz, Daniel (High-energy emission of jetted AGN)
13:55 - Boettcher, Markus (VHE Gamma-Ray Observations of Radio Galaxies by H.E.S.S.)
14:10 - Worrall, Diana (The intermediate-power population of radio galaxies: morphologies and interactions)
14:25 - Birkinshaw, Mark (Extreme jet distortions in low-redshift radio galaxies)
14:40 - Sobolewska, Malgosia (Compact Symmetric Objects: the key to understanding the initial stages of a radio source expansion)
14:55 - Poster presentations

The Central Engine and jet production
room: E2
15:30 - Tchekhovskoy, Alexander (Disks, jets, and other black hole-powered transients)
15:55 - Falcke, Heino (The Jet-Disk Model for the Galactic Center and other AGN)
16:10 - Boccardi, Bia (Testing jet formation in a new sample of radio galaxies)
16:25 - Bruni, Gabriele (Probing restarting activity in soft gamma-ray selected giant radio galaxies)
16:40 - Discussion on “The Central Engine and jet production"
16:55 - Poster presentations


Thursday, 23. Aug.

Radio galaxy populations and statistics
room: E2
08:30 - Sadler, Elaine (Radio galaxy populations and their cosmic evolution )
08:55 - Hardcastle, Martin (Radio AGN in LOFAR surveys - large samples at last!)
09:10 - White, Sarah (The MWA GLEAM 4-Jy Sample)
09:25 - Saxena, Aayush (Search for faint high redshift radio galaxies at low frequencies)
09:40 - Saripalli, Lakshmi (Probing SMBH axis perturbations with low axial ratio radio galaxies)
09:55 - Poster presentations

Future perspectives and directions
room: E2
10:30 - Blackburn, Lindy (The Event Horizon Telescope and beyond) 
10:55 - Savolainen, Tuomas (RadioAstron imaging of nearby radio galaxies)
11:10 - Mahony, Elizabeth (Jet-driven outflows of cold gas in radio galaxies: the case of 3C293)
11:25 - Nyland, Kristina (AGN Feedback and its Importance to Galaxy Evolution in the Era of the Next Generation Very Large Array)
11:40 - Discussion on “Future perspectives and directions"
11:55 - Poster presentations

Interaction with the environment
room: E2
13:30 - Fabian, Andrew (AGN Feedback in Clusters of Galaxies)
13:55 - Oosterloo, Tom (Molecular outflows in young radio galaxies)
14:10 - Allison, James (The cold gas reservoir feeding a distant interacting young radio galaxy)
14:25 - Whittam, Imogen (Understanding the mechanical feedback from high- and low-accretion rate radio galaxies)
14:40 - Jarvis, Miranda (Prevalence of radio jets associated with quasar outflows and feedback)
14:55 - Poster presentations

Interaction with the environment (part 2), summary, and final discussion
room: E2
15:30 - Morganti, Raffaella (The parsec-scale structure of jet-driven HI outflows in powerful radio galaxies)
15:45 - Shabala, Stas (Modeling the environmental dependence of radio galaxy populations)
16:00 - Discussion on “Interaction with the environment”
16:10 - Celotti, Anna Lisa (Rapport of the conference)
16:45 - Discussion and Closing Remarks



  • Loredana Bassani - Bologna, Italy
  • Volker Beckmann - Paris, France
  • Markus Böttcher - Potchefstroom, South Africa
  • Chris Done - Durham, UK
  • Melanie Johnston-Hollitt - Wellington, New Zealand
  • Anne Lähteenmäki - Aalto, Finland
  • Raffaella Morganti - Dwingeloo, The Netherlands
  • Rodrigo Nemmen - Sao Paolo, Brazil
  • Paolo Padovani - Munich, Germany
  • Claudio Ricci - Santiago, Chile
  • Yoshihiro Ueda - Kyoto, Japan
  • Sylvain Veilleux - College Park, USA
  • Diana Worrall - Bristol, UK



Volker Beckmann 


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