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10 de abr. de 2019 · The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole. Today, in coordinated press conferences across the globe, EHT researchers reveal that they have succeeded, unveiling the first direct visual evidence of a supermassive black hole and its shadow.
いて座A*（中央）と最近起きた爆発現象の光エコーの軟X線画像. イベントホライズンテレスコープ （Event Horizon Telescope; EHT）は、地球上にある電波望遠鏡を超長基線電波干渉法（VLBI）を用いて結合させ、銀河の中心にある巨大ブラックホールの姿を捉えるプロジェクトである。
Observational publication: First M87 Event Horizon Telescope Results.VII. Polarization of the Ring, The Astrophysical Journal Letters, Vol. 910, L12, 24 March 2021 doi: 10.3847/2041-8213/abe71d; Theory publication: First M87 Event Horizon Telescope Results.VIII. Magnetic Field Structure near The Event Horizon, The Astrophysical Journal Letters, Vol. 910, L13, 24 March 2021 doi: 10.3847/2041 ...
The Event Horizon Telescope (EHT) collects light from the black hole using a small number of telescopes distributed around the Earth. Once the EHT has measured data from the black hole, we still need to make a picture from it - a process referred to as imaging. The light we collect gives us some indication of the structure of the black hole.
It was captured by the Event Horizon Telescope (EHT), an array which linked together eight existing radio observatories across the planet to form a single “Earth-sized” virtual telescope. The telescope is named after the “event horizon”, the boundary of the black hole beyond which no light can escape.
Visit the EHT Website. The first image of a black hole in human history, captured by the Event Horizon Telescope, showing light emitted by matter as it swirls under the influence of intense gravity. This black hole is 6.5 billion times the mass of the Sun and resides at the center of the galaxy M87. Credit: Event Horizon Telescope Collaboration.
Das Event Horizon Telescope ( EHT, deutsch Ereignishorizontteleskop) ist ein Verbund von Radioteleskopen, um mittels Very Long Baseline Interferometry (VLBI) weit entfernte Schwarze Löcher zu untersuchen. Radioteleskope auf der ganzen Welt nehmen dafür Signale auf, die durch die Schwarzen Löcher verursacht werden.
