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Key Science Goals for the Next-Generation Event Horizon Telescope

Johnson, MD; Akiyama, K; Blackburn, L; Bouman, KL; Broderick, AE; Cardoso, V; Fender, RP; ... Wielgus, M; + view all (2023) Key Science Goals for the Next-Generation Event Horizon Telescope. Galaxies , 11 (3) p. 61. 10.3390/galaxies11030061. Green open access

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Abstract

The Event Horizon Telescope (EHT) has led to the first images of a supermassive black hole, revealing the central compact objects in the elliptical galaxy M87 and the Milky Way. Proposed upgrades to this array through the next-generation EHT (ngEHT) program would sharply improve the angular resolution, dynamic range, and temporal coverage of the existing EHT observations. These improvements will uniquely enable a wealth of transformative new discoveries related to black hole science, extending from event-horizon-scale studies of strong gravity to studies of explosive transients to the cosmological growth and influence of supermassive black holes. Here, we present the key science goals for the ngEHT and their associated instrument requirements, both of which have been formulated through a multi-year international effort involving hundreds of scientists worldwide.

Type: Article
Title: Key Science Goals for the Next-Generation Event Horizon Telescope
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/galaxies11030061
Publisher version: https://doi.org/10.3390/galaxies11030061
Language: English
Additional information: © 2023 by the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Keywords: black holes; general relativity; interferometry; accretion; relativistic jets; very-long-baseline interferometry; EHT; ngEHT
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10173947
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