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The Karl G. Jansky Very Large Array (VLA) is a centimeter-wavelength radio astronomy observatory in the southwestern United States built in the 1970s. It lies in central New Mexico on the Plains of San Agustin , between the towns of Magdalena and Datil , approximately 50 miles (80 km) west of Socorro .
The NRAO VLA Sky Survey (NVSS) was an astronomical survey of the Northern Hemisphere carried out by the Very Large Array (VLA) of the National Radio Astronomy Observatory (NRAO), resulting in an astronomical catalogue. It was led by James J. Condon. [1] The survey covers 82% sky, consisting of everything north of declination-40 degrees.
The Very Long Baseline Array usually makes radio observations at wavelengths from three millimeters to 90 centimeters, or in other words, at frequencies from 0.3 gigahertz to 96 gigahertz. Within this frequency range, the VLBA observes in eight different frequency bands that are useful for radio astronomy.
English: A few of the dish antennas of the Very Large Array a radio telescope located in Socorro, New Mexico, USA. Completed in 1980, it consists of 27 large 25 meter diameter parabolic antennas arranged in a Y shape, mounted on railroad tracks (visible at bottom) so they can be moved. Photo taken on North American road trip, 2009-08, filtered ...
At low radio frequencies the sky is dominated by small bright sources (shown is a 151 MHz map of the region: 140° to 180° Galactic longitude; -5° to 5° Galactic latitude). LOFAR will have sufficient fidelity and sensitivity to see faint structure between these bright sources because of the very large number of array elements.
The European VLBI Network (EVN) is a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa and Puerto Rico, which performs very high angular resolution observations of cosmic radio sources using very-long-baseline interferometry (VLBI). The EVN is the most sensitive VLBI array in the world ...
The Large-Aperture Experiment to Detect the Dark Ages (LEDA) is designed to detect the spectrum of the 21 cm Hydrogen line from the Intergalactic Medium (IGM) at redshifts of 15–30, when the Universe was just ~1% of its present age. [1] It is located at the Long Wavelength Array site, adjacent to the Very Large Array. LEDA principally ...
CHARA array – MIRC [25] 2007: Both Aa1 and Aa2 are visible in the animation. θ 1 Ori C: 0.2: 10.6 ± 1.5: 1400: Very Large Telescope – AMBER [26] 2009: In the image, the right inset is θ 1 Ori C and the left inset is θ 1 Ori F. θ 1 Ori F: Very Large Telescope – VLTI/GRAVITY [27] 2016 [citation needed] ε Aur B 2.27: 3.7 ± 0.7: ca ...