The governing bodies of the CTAO

The Cherenkov Telescope Array Observatory gGmbH (CTAO gGmbH) is the interim legal entity in the preparation of the design and implementation of the CTAO until the final legal entity, a European Research Infrastructure Consortium (ERIC), is achieved. The CTAO ERIC will be responsible for the construction and operation of the Observatory.

CTAO Council


The CTAO gGmbH is governed by the CTAO Council, composed of shareholders from 11 countries and one intergovernmental organisation (ESO), as well as associate members from two countries.



Chair, CTAO Council: Markus Schleier

Vice-Chair, CTAO Council: Massimo Cappi

Managing Directors, CTAO gGmbH: Federico Ferrini and Stuart McMuldroch

CTAO Council Members and Associate Members

Member Country Institute Delegates Country Entrance Year
Australia Australia Astronomy Limited Gavin Rowell, James Murray 2018
Austria Leopold Franzens Universität Olaf Reimer 2016
Czech Republic Institute of Physics of the Academy of Science of the Czech Republic Michael Prouza, Marek Vyšinka 2015
France Centre national de la recherche scientifique (CNRS) Vincent Poireau, Martin Giard 2016
France Commissariat à l’énergie atomique et aux énergies alternatives (CEA) Danielle Gallo 2016
Germany Deutsches Elektronen-Synchrotron (DESY) Christian Stegmann 2014
Germany Max-Planck-Gesellschaft (MPG) Severin Berger 2016
Intergovernmental Organisation European Southern Observatory (ESO) Xavier Barcons, Nikolaj Gube 2019
Italy Istituto Nazionale di Astrofisica (INAF) Filippo Maria Zerbi 2014
Italy Istituto Nazionale di Fisica Nucleare (INFN) Marco Pallavicini
(Statement M.Pallavicini)
Japan University of Tokyo Masahiro Teshima 2015
Slovenia University of Nova Gorica Danilo Zavrtanik 2018
Spain Instituto de Astrofísica de Canarias (IAC) Inma Figueroa, Rafael Rebolo 2015
Switzerland Université de Genève Teresa Montaruli, Xavier Reymond 2014
United Kingdom UK Research and Innovation – The Science and Technology Facilities Council Helen Beadman 2015

CTAO Council Meetings


The CTAO Council meets on a regular basis at least twice per year. The meetings are not open to the public and are attended by shareholder delegates and their experts, associate member delegates, CTAC spokesperson(s), the chair of the CTAC Board and the Managing Director assisted by the Project Manager, the Scientific Director/Project Scientist and additional members of the company or guests at the Chair’s discretion. Summaries of the meetings and other project updates are reported in the CTAO Newsletter via the message from the Managing Director.


Next Meeting

31st Council Meeting

13-14 June 2023

Geneva, Switzerland

Advisory Bodies


Administrative and Finance Committee (AFC)
Purpose: To advise the Council on matters of administrative, legal and financial nature.
Chair: Chiara Guccione


In-Kind Review Committee (IKRC)
Purpose: To assess the process of calls for in-kind contributions to the CTAO, evaluate proposals received, provide recommendations on the selection of the proposals to the Council and to advise on the contracting and reviewing process of in-kind contributions.

Chair: Richard Schilizzi

Vice Chair: Christian Fabjan

Scientific and Technical Advisory Committee (STAC)

Purpose: To advise the CTAO Council and provide advice and recommendations based on the assessment of the scientific and technical activities carried out for the CTAO construction project.
Chair: Adrian Russell

Next Meetings

25th AFC Meeting

9-10 May 2023

Bologna (Italy)