Special Issue "Multi-Phase Fueling and Feedback Processes in Jetted AGN"

A special issue of Galaxies (ISSN 2075-4434).

Deadline for manuscript submissions: 31 December 2023 | Viewed by 222

Special Issue Editors

INAF – Institute of Radioastronomy, 40129 Bologna, Italy
Interests: AGN; galaxy evolution; surveys; radio astronomy
Cardiff Hub for Astrophysics Research and Technology (CHART), School of Physics & Astronomy, Cardiff University, Cardiff CF24 3AA, UK
Interests: AGN feeding and feedback; SMBH-host galaxy co-evolution; cold ISM (dust, molecular, and atomic gas); radio jets and ISM relative interplay; X-ray astronomy: hot diffuse gas

Special Issue Information

Dear Colleagues,

Relativistic radio-emitting jets associated with active galactic nuclei (AGNs) likely play a crucial role in the evolution of galaxies. By transferring a fraction of their kinetic energy to the surrounding medium (the so-called “kinetic-mode” AGN feedback), radio jets can both quench (negative feedback) and promote (positive feedback) star formation, thus regulating the growth of both central supermassive black holes (SMBHs) and their host galaxies. One of the most spectacular phenomena associated with relativistic jets is the creation of cavities and shocks in the hot X-ray-emitting atmospheres of galaxies, groups, and clusters, providing the most striking evidence that expanding radio jets can heat their surroundings, balancing their spontaneous radiative cooling losses.

Complementing earlier high-resolution radio, optical, and X-ray instruments (e.g., VLA, HST, Chandra, XMM-Newton), the unprecedented resolution and sensitivity provided by the latest generation of telescopes (e.g., VLT/MUSE, ALMA and the SKA precursors) combined with state-of-the-art simulations have opened up new regimes that have begun to revolutionize our view of the interplay between radio jets and their surrounding media. For instance, evidence has accumulated over the past few years indicating that jet-mode feedback can significantly alter the distribution, kinematics, and physics of the surrounding gaseous medium, including on (sub-)kpc scales, with a few examples starting to appear at high redshift as well. Recent observations also suggest that jetted AGNs may be self-regulated by a feeding and feedback loop, in which the matter that fuels the SMBH and triggers the jet activity gets regularly heated by these latter and stops being accreted, setting up a cycle that is fast compared to the evolutionary timescales of the host galaxies. All this provides clear evidence of a deep connection between the large-scale environment, fueling/feedback processes of jetted AGNs, and their host galaxy evolution, although the complexity of these phenomena still leave many open questions.

In this volume we will summarize the current state of knowledge on this topic, focusing on recent results from both multi-wavelength observations and complementary simulations, and looking towards future perspectives in the context of forthcoming facilities.

Dr. Isabella Prandoni
Dr. Ilaria Ruffa
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Galaxies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • AGN feedback
  • radio jets
  • SMBH fueling
  • galaxy evolution

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.



Thaisa Storchi-Bergmann

Gas replenishing mechanism(s) and the role of the large-scale environment

Judith Croston

Radio jet powering and energetics

Dipanjan Mukherjee

Radio jet feedback on (sub-)kpc scales

Raffaella Morganti

AGN duty cycle

Francoise Combes

SMBH fuelling processes on (sub-)kpc scales

Chris Harrison

Jet-ISM interaction on galactic scales (positive vs negative feedback)

Back to TopTop