ESO workshop 2026 on AGN feedback: first announcement and abstract submission open

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AGN FEEDBACK ACROSS ALL SCALES AND TIME

6 – 10 JULY 2026

ESO Garching, Germany

Dear colleagues,

We are delighted to announce the ESO workshop “AGN Feedback Across All
Scales and Time”, which will be hold at ESO (Germany) on 6 – 10 July
2026.

The abstract submission is now open: Registration & abstract submission
and will close on 15 January 2026.



Scientific rationale

AGN feedback is a complex problem. It involves multiple spatial scales,
multiple gas phases and mass scales, multiple physical processes and
timescales. Recent progress has been accelerated by an increase in both
computational developments and observational facilities. The past years
have witnessed the dawn of a new range of sub-grid models for AGN
feedback, incorporated into ever-more-detailed cosmological simulations.
Observationally, great progress has been made in characterising the
demographics of AGN driven outflows and jets using Integral Field
Spectrographs from the ground and sub-mm and radio interferometers. JWST
in the last two years has opened a new window in these studies allowing
to trace completely new regime of gas phases, mass and spatial scales,
earliest epochs with unprecedented detail thanks to its sensitivity and
coverage of the mid-infrared regime.

All this theoretical and observational effort has increased our
understanding of feedback phenomena, but it has also opened many new
exciting questions. The main aim of the workshop is to tackle these open
questions bringing together experts on AGN feedback studies. We believe
the time is very appropriate for such a meeting to summarise where we
stand and plan future lines of research in this very important field.
The proposed workshop also aims at putting AGN feedback studies in the
context of current, future and concept facilities (LSST, Euclid, MOONS,
PSF, Roman, 4MOST, SKA, ELT, LISA, ngVLA, AXIS, New Athena, etc..).

We foresee that the workshop will focus on the following key questions:

How do we robustly trace and test the AGN feedback process from
parsec to megaparsec scales?
What is the relative impact of AGN feedback on ISM and CGM scales?
How do different driving mechanisms (e.g. winds, jets, radiation)
operate as a function of SMBH properties, galaxy properties or cosmic
time?
What is the relevance of AGN feedback in dwarf galaxies?
What is the impact of the AGN feedback in the early formation of
SMBHs and galaxies during the reionisation epoch?
Which major advancements are needed in numerical simulations of AGN
feedback?
What are the key properties of multiphase outflows (e.g. mass
loading, velocities, etc.) that allow a meaningful comparison between
observations and simulations?


Important dates

10 November 2025: Registration and abstract submission open
15 January 2026: Abstract submission deadline
1 March 2026: Program release
15 April 2026: Registration closes



Invited speakers

· Manuela Bischetti – INAF Osservatorio Astronomico di Trieste

· Julie Hlavacek-Larrondo – Université de Montréal

· Sophie Koudmani – University of Hertfordshire

· Dipanjan Mukherjee – Inter-University Centre for Astronomy and
Astrophysics

· Michele Perna – Centro de Astrobiología (CAB)

· Mateusz Ruszkowski – University of Michigan



SOC members

Vincenzo Mainieri (Chair), Fabrizio Arrigoni Battaia, Marcella Brusa,
Stefano Carniani, Claudia Cicone, Chiara Circosta, Tiago Costa, Vicky
Fawcett, Chris Harrison, Darshan Kakkad, Cristina Ramos Almeida,
Eleonora Sani, Samuel Ward, Dominika Wylezalek
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