Symmetry in Active Galactic Nuclei
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: 31 December 2026 | Viewed by 264
Special Issue Editor
Special Issue Information
Dear Colleagues,
Active galactic nuclei (AGN) are among the most luminous cosmological phenomena in the Universe, powered by accreting supermassive black holes in the centres of galaxies. Symmetry plays a central role in the observational classification and interpretation of their physical processes. The general assumption of theoretical models proposes axial or spherical symmetry to characterise the accretion disc, the obscuring dusty torus, the jet structure, and winds and outflows. Additional regularities concerning AGN include the radio polarisation and the spin vectors showing a preferred alignment within large groups. On the other hand, empirical evidence often points to deviations from the symmetric morphology, arising from interactions with the host galaxy or the surrounding material, the presence of a binary companion, or instabilities of the accretion flow. Investigating AGN systems that are in agreement with or in departure from a general model facilitates the unravelling of questions concerning the feedback and co-evolution of AGN and their host galaxies, accretion dynamics, and black hole growth.
In this Special Issue, new original articles and reviews are welcome, in relation to the topic of observational and theoretical astronomy, addressing the symmetry/asymmetry found in active galactic nuclei, and AGN host galaxies, and their relations to larger-scale structures.
Dr. Krisztina Perger
Guest Editor
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 250 words) can be sent to the Editorial Office for assessment.
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. Symmetry is an international peer-reviewed open access monthly 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 2400 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.
Keywords
- active galactic nuclei
- supermassive black holes
- jets
- galaxy evolution
- feedback
- observational astronomy
- cosmology
Benefits of Publishing in a Special Issue
- Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
- Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
- Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
- External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
- Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.
Further information on MDPI's Special Issue policies can be found here.
