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The Event Horizon Telescope (EHT) is a telescope array consisting of a global network of radio telescopes.The EHT project combines data from several very-long-baseline interferometry (VLBI) stations around Earth, which form a combined array with an angular resolution sufficient to observe objects the size of a supermassive black hole's event horizon.
Some of the Atacama Large Millimeter Array radio telescopes The eight radio telescopes of the Smithsonian Submillimeter Array, located at the Mauna Kea Observatory in Hawai'i VLBI was used to create the first image of a black hole, imaged by the Event Horizon Telescope and published in April 2019. [1]
The Submillimeter Array (SMA) consists of eight 6-meter (20 ft) diameter radio telescopes arranged as an interferometer for submillimeter wavelength observations. It is the first purpose-built submillimeter interferometer, constructed after successful interferometry experiments using the pre-existing 15-meter (49 ft) James Clerk Maxwell Telescope and 10.4-meter (34.1 ft) Caltech Submillimeter ...
The James Webb Space Telescope has shown that the Milky Way’s ... of the accretion disk just beyond the black hole’s event horizon, ... shorter wavelength changed in brightness just before the ...
APEX is also involved in the Global mm-VLBI Network and in the Event Horizon Telescope (EHT). The EHT project produced the first direct image of a black hole . [ 7 ] The detection in May 2012 of the quasar 3C 279 at 1.3 mm wavelength on the 9386 km baseline between APEX and the SMA in Hawaii has set the world-record in angular resolution: 28.6 ...
It's intersection with the Compton Wavelength defines all Planck Units. The Schwarzschild radius or the gravitational radius is a physical parameter in the Schwarzschild solution to Einstein's field equations that corresponds to the radius defining the event horizon of a Schwarzschild black hole. It is a characteristic radius associated with ...
Astronomers using the Hubble Space Telescope and the Very Large Telescope have made precise tests of general relativity on galactic scales. The nearby galaxy ESO 325-G004 acts as a strong gravitational lens, distorting light from a distant galaxy behind it to create an Einstein ring around its centre. By comparing the mass of ESO 325-G004 (from ...
Haystack serves as a computational hub for the Event Horizon Telescope, an assemblage of radio telescopes around Earth that combine data for very-long-baseline interferometry (VLBI) to achieve angular resolution capable of imaging a supermassive black hole's event horizon. Data are transported on large hard drives from the observing telescopes ...