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Very long baseline

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Very Long Baseline Interferometry Data Type, VLBI
VLBI can be applied to a number of investigations.

 


Very Long Baseline Interferometry
VLBI In radio astronomy, a system of two or more antennas placed several hundred or several thousand miles apart, which are operated together as an interferometer.
Vesta ...

Very Long Baseline Interferometry [LLM96]
VLT
Very Large Telescope [LLM96]
VLTI ...

Very Long Baseline
The use of radio telescopes located thousands of miles apart to resolve detail in radio sources.
Vesicular Basalt ...

The Very Long Baseline Array -- VLBA
The final "telescope" of the NRAO is the Very Long Baseline Array or VLBA, used for Very Long Baseline Interferometry (VLBI).

Very Long Baseline Interferometry (VLBI) also makes use of radio interferometric techniques.
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Very long baseline interferometry was used to track the motion of the balloon to provide the wind velocity in the clouds.

- Very Long Baseline Array Reveals Formation Region of Giant Cosmic Jet Near a Black Hole
- Fireworks Near a Black Hole in the Core of Seyfert Galaxy NGC 4151
- An Abrasive Collision Gives One Galaxy a "Black Eye" ...

C. Very Long Baseline Array - system of ten remotely controlled radio telescopes Socorro, New Mexico
D.Mauna Kea, Hawaii
E. Brewster, Washington ...

The Very Long Baseline Array is a huge interferometer that uses ten telescopes placed in sites from Hawaii to the Virgin Islands (see map below). This telescope is the 8,600 kilometers across and has a resolution as good as 0.0002 arc second! ...

Using the Very Long Baseline Array (VLBA) - ten 25-metre diameter dish antennas spread from Hawaii to the Caribbean - astronomers have made important headway into studies of dark energy, extrasolar planets, and the state of our own Milky Way Galaxy.

Very Long Baseline Interferometry
Since the 1970s telescopes from all over the world (and even in Earth orbit) have been combined to perform Very Long Baseline Interferometry.

Very Long Baseline Array (VLBA) (NASA Thesaurus) A transcontinental radio telescope, being developed by the National Radio Astronomy Observatory, ...

Recent measurements by the Very Long Baseline Array (VLBA) have revealed that the Milky Way is much larger than previously thought.

This technique of very long baseline interferometry (VLBI) involves using atomic clocks at each telescope to synchronize the individual recordings to an accuracy of better than one-millionth of a second.

Using the Very Long Baseline Array"a continent-wide network of 10 radio telescopes"a U.S."Japanese team was able to achieve angular resolution hundreds of times better than that attainable with the Hubble Space Telescope.

On 1 April 2004, astronomers announced they had accurately measured the size of Sagittarius A* with the Very Long Baseline Array (VLBA) radiotelescope, with stations spread across the Earth.

This technique is called very long baseline interferometry or VLBI. ATCA can be linked with the 22m dish at Mopra, the 64m Parkes radio telescope and dishes at Tidbinbilla near Canberra, ...

Very Long Baseline Array (VLBA)
very long baseline interferometry (VLBI)
Vesta (minor planet 4)
70 Virginis
Virgo (constellation)
Virgo Cluster
virial theorem
Visible and Infrared Telescope for Astronomy (VISTA)
visible horizon ...

The latest development in radio astronomy observations is the Space Very Long Baseline Interferometry (SVLBI) program. This is used to perform radio astronomy with an extended baseline VLBI, of which one element is a space-based antenna.

Scientists then used arrays of radio telescopes to study the aftermath over the next few months - including the UK's Merlin and the Very Long Baseline Array (VLBA) that stretches from Hawaii to the Caribbean.

The name is short for SELenological and ENgineering Explorer. SELENE actually would consist of three separate lunar satellites - the main orbiter, a small relay satellite, and a small Very Long Baseline Interferometry (VLBI) astronomy satellite ...

This is called Very Long Baseline Interferometry (VLBI) and allows for resolution that is even better than that in the optical (good enough resolution that you could in principle read a newspaper in Washington from the distance of Charlottesville).

Large versions of such systems can provide the resolution equivalent to a telescope thousands of kilometres across, though not the sensitivity of such an instrument, via Very Long Baseline Interferometry (VLBI).

See also: Telescope, Astronomy, Interferometry, Time, Radio telescope

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