Special Issue "Understanding X-ray Variability of AGNs"

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

Deadline for manuscript submissions: 31 December 2019.

Special Issue Editor

Dr. Alicja Wierzcholska
Guest Editor
Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Krakow, Poland
Interests: X-ray astronomy; gamma ray astronomy; blazars; multi-frequency variability

Special Issue Information

Dear Colleagues,

It is my pleasure to inform you that Galaxies is hosting a Special Issue titled “Understanding the X-ray variability of AGNs”.

X-ray variability is a powerful tool for investigating extreme physical processes that take place in the inner parts of AGNs close to accreting black holes.

In this era of intensive high and very high energy gamma-ray observations, we aim to collect studies on the related X-ray regimes and phenomena.

We are interested in both observational and theoretical papers exploring the X-ray variability of different kinds of AGNs. This issue is limited to a particular subclass of AGN or specific aspects of their variability. Review papers summarizing the current state of knowledge about these phenomena are also welcomed.

Dr. Alicja Wierzcholska
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 papers will be 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 quarterly 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 1000 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.


  • X-rays
  • variability
  • AGNs
  • variability timescales
  • blazars

Published Papers

This special issue is now open for submission.
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