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Very Large Array
Very Large Array
One of the 28 radio telescopes undergoing maintenance in "The Barn"
One of the 28 radio telescopes undergoing maintenance in "The Barn"
The Bracewell Radio Sundial on the VLA walking tour, seen from the south. Named for Ronald N. Bracewell, this sundial marks on the ground positions of
The Bracewell Radio Sundial on the VLA walking tour, seen from the south. Named for Ronald N. Bracewell, this sundial marks on the ground positions of the shadow of the central sphere (the gnomon) at different times of day and times of year. The shadow on Dec 22, 2017 falls very near the winter solstice line and the 1:00 PM (solar time) mark. The other two lines of markers north of the gnomon are for the equinoxes and the summer solstice. Additional lines of markers south of the gnomon mark positions of "shadows" of the radio sources
The cross rail track structure of the VLA, including an empty antenna mount station on the right (the three concrete piers that the antenna's triangul
The cross rail track structure of the VLA, including an empty antenna mount station on the right (the three concrete piers that the antenna's triangular base mounts to)
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The Karl G. Jansky Very Large Array, a radio interferometer in New Mexico, United States
The Karl G. Jansky Very Large Array, a radio interferometer in New Mexico, United States
Chart on which Jocelyn Bell Burnell first recognised evidence of a pulsar, in 1967 (exhibited at Cambridge University Library)
Chart on which Jocelyn Bell Burnell first recognised evidence of a pulsar, in 1967 (exhibited at Cambridge University Library)
The Atacama Large Millimeter Array (ALMA), many antennas linked together in a radio interferometer
The Atacama Large Millimeter Array (ALMA), many antennas linked together in a radio interferometer
An optical image of the galaxy M87 (HST), a radio image of same galaxy using Interferometry (Very Large Array – VLA), and an image of the center secti
An optical image of the galaxy M87 (HST), a radio image of same galaxy using Interferometry (Very Large Array – VLA), and an image of the center section (VLBA) using a Very Long Baseline Array (Global VLBI) consisting of antennas in the US, Germany, Italy, Finland, Sweden and Spain. The jet of particles is suspected to be powered by a black hole in the center of the galaxy.