VERY LONG BASELINE INTERFEROMETRY Definition & Meaning

very long baseline interferometry

noun

Radio Astronomy.

an interferometry technique that enhances angular resolution in the observation of radio signals from distant celestial objects, as quasars, by combining signals from several radio telescopes around the earth or such signals with those from an earth-orbiting satellite. : VLBI

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The EHT is not a single instrument, but rather a consortium of telescopes across the planet that collected data in a technique called very long baseline interferometry.

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Using a technique called Very Long Baseline Interferometry, the antennas in the network were paired off with each other one-by-one, like individuals shaking hands with everyone in a crowd.

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The project uses an observational technique known as Very Long Baseline Interferometry, which requires careful calibration to allow multiple radio dishes spread across the planet to function as if they were a single, Earth-size instrument.

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Using very long baseline interferometry, researchers in Italy and Japan recently tried to link two optical atomic clocks about 5,500 miles apart.

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One possible use is very long baseline interferometry.

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