Fundamental physics opportunities with the next-generation Event Horizon Telescope

Abstract The Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These observations have provided a new means to study supermassive black holes and probe physical processes occurring in the strong-field regime. We review the prospects of future observations and theoretical studies of supermassive black hole systems with the next-generation Event Horizon Telescope (ngEHT) project, which will greatly enhance the capabilities of the existing EHT array. These enhancements will open up several previously inaccessible avenues of investigation, thereby providing important new insights into the properties of supermassive black holes and their environments. This review describes the current state of knowledge for five key science cases, summarising the unique challenges and opportunities for fundamental physics investigations that the ngEHT will enable.

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Publication Details

Journal
Living Reviews in Relativity
Published
2025-06-06
DOI
https://doi.org/10.1007/s41114-025-00057-0
Citations
23
Primary Topic
Superconducting and THz Device Technology
Type
article
Field-Weighted Citation Impact
26.56

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Fundamental physics opportunities with the next-generation Event Horizon Telescope

Sushant G. Ghosh, S. Britzen, Aditya Tamar, Saurabh Kumar et al.
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Living Reviews in Relativity
Superconducting and THz Device Technology
26.56
article

Fundamental physics opportunities with the next-generation Event Horizon Telescope

Sushant G. Ghosh, S. Britzen, Aditya Tamar, Saurabh Kumar, Dominic W. Pesce, Roman Gold, Astrid Eichhorn, Christian M. Fromm, Shammi Tahura, Avery E. Broderick, Priyamvada Natarajan, Yun Fang, Héctor Olivares, Leonid Gurvits, Paul Tiede, Sheperd S. Doeleman, Prashant Kocherlakota, Janice Houston, K. Yakut, Surjeet Rajendran, Peter Galison, Michael D. Johnson, Raúl Carballo-Rubio, Andrew Chael, Shahar Hadar, Lijing Shao, Ziri Younsi, Vítor Cardoso, Richard Brito, Maciek Wielgus, Xiao Xue, Peter B. Denton, T. M. Eubanks, Luca Visinelli, Hooman Davoudiasl, Koushik Chatterjee, A. Foschi, Lindy Blackburn, Pedro V. P. Cunha, Rittick Roy, Huan Yang, Daniel C. M. Palumbo, Dimitry Ayzenberg, Aaron Held, Yifan Chen, Frédéric E. Vincent, Zhiren Wang, Yichao Hu
article en
23 citations

Abstract

Abstract The Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These observations have provided a new means to study supermassive black holes and probe physical processes occurring in the strong-field regime. We review the prospects of future observations and theoretical studies of supermassive black hole systems with the next-generation Event Horizon Telescope (ngEHT) project, which will greatly enhance the capabilities of the existing EHT array. These enhancements will open up several previously inaccessible avenues of investigation, thereby providing important new insights into the properties of supermassive black holes and their environments. This review describes the current state of knowledge for five key science cases, summarising the unique challenges and opportunities for fundamental physics investigations that the ngEHT will enable.

Living Reviews in RelativityVol. 28(1)
Oranim Academic College of Education (IL), Ningbo University (CN), National Institute of Technology Karnataka (IN), Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento (PT), University of Iowa (US), Centre National de la Recherche Scientifique (FR), Woodwell Climate Research Center (US), University of Salerno (IT), Harvard University (US), Johns Hopkins University (US), University of Waterloo (CA), Universität Hamburg (DE), Istituto Nazionale di Fisica Nucleare (IT), Délégation Paris 7 (FR), University of Southern Denmark (DK), Perimeter Institute (CA), Chinese Academy of Sciences (CN), Brookhaven National Laboratory (US), Princeton University (US), Peking University (CN), Université Paris Cité (FR), Heidelberg University (DE), Université Paris Sciences et Lettres (FR), Princeton Plasma Physics Laboratory (US), Observatoire de Paris (FR), Deutsches Elektronen-Synchrotron DESY (DE), École Normale Supérieure - PSL (FR), Yale University (US), Sorbonne Université (FR), Sorbonne Paris Cité (FR), École Normale Supérieure (BI), Kavli Institute for Theoretical Sciences (CN), Center for Astrophysics Harvard & Smithsonian (US), North Carolina Space Grant Consortium (US), Niels Brock (DK), Astronomy and Space (AU), Max Planck Institute for Radio Astronomy (DE), Instituto de Astrofísica de Andalucía (ES), National Astronomical Observatories (CN), University College London (GB), Jamia Millia Islamia (IN), University of Aveiro (PT), Heidelberg Institute for Theoretical Studies (DE), University of Guelph (CA), Joint Institute for VLBI ERIC (NL), University of Tübingen (DE), University of Amsterdam (NL), University of Haifa (IL), University of KwaZulu-Natal (ZA), Delft University of Technology (NL), Tsinghua University (CN)
National Science Foundation, U.S. Department of Energy, John Templeton Foundation, Gordon and Betty Moore Foundation, Harvard University, Villum Fonden, Innovation, Science and Economic Development Canada, International Max Planck Research School for Environmental, Cellular and Molecular Microbiology, Government of Canada, European Commission, National Research Foundation, Department of Science and Technology, Ministry of Science and Technology, India, Danmarks Grundforskningsfond, National Natural Science Foundation of China, Ministero dello Sviluppo Economico, International Max Planck Research School for Advanced Methods in Process and Systems Engineering, Center for Research and Development in Mathematics and Applications, Institut Périmètre de physique théorique, HORIZON EUROPE Framework Programme, Science and Engineering Research Board, Fundação para a Ciência e a Tecnologia
Openalex Percentile: Top 0%
Superconducting and THz Device Technology
26.56
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