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Key Science Goals for the Next-Generation Event Horizon Telescope

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arxiv 2304.11188 v1 pith:5BOGGLDU submitted 2023-04-21 astro-ph.HE astro-ph.GAastro-ph.IM

Key Science Goals for the Next-Generation Event Horizon Telescope

classification astro-ph.HE astro-ph.GAastro-ph.IM
keywords blackscienceeventgoalsholehorizonnext-generationngeht
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    3D GRMHD simulations of accretion onto a JMN-1 horizonless singularity produce a magnetically arrested disk with an accretion rate of ~3e-6 Eddington matching M87* observations and EHT-consistent images, plus central ...

  2. Dark matter environments and safeguards for spacetime inference from horizon scale interferometry

    gr-qc 2026-07 conditional novelty 6.0

    Using public 2017 M87* closure data, a frozen Kerr source fails an absolute adequacy test and the differential tidal-charge response fails numerical convergence, so no posterior or bound is reported.

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    astro-ph.GA 2026-07 accept novelty 6.0

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    astro-ph.GA 2026-07 conditional novelty 6.0

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  5. Reshaping the inner shadow of a Kerr black hole by a torn accretion disk

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