Arecibo Observatory

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Arecibo Observatory,

radio-astronomyradio astronomy,
study of celestial bodies by means of the electromagnetic radio frequency waves they emit and absorb naturally. Radio Telescopes

Radio waves emanating from celestial bodies are received by specially constructed antennas, called radio telescopes,
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 facility located near Arecibo, Puerto Rico, that includes the world's largest single-dish radio telescope, part of the National Astronomy and Ionosphere Center. Conceived by, designed by, and built under the supervision of William E. Gordon, it was completed in 1963 and is now operated by SRI International and its partners under contract with the U.S. National Science Foundation. The principal instrument, the William E. Gordon Telescope, is a fixed antenna of spherical section, 1,000 ft (305 m) in diameter, that is built into a natural limestone bowl. Although the antenna is too large and heavy to be moved, it can be pointed as much as 20° from the zenith by moving the line feeds to the antenna's focus. As a result of the resurfacing of the antenna, which was completed in 1974, observations are possible up to a frequency of 4,000 MHz. A 100-ft (30-m) satellite antenna can be used in conjunction with the large antenna for interferometer observations. In addition there is a wide range of instrumentation for measuring ionospheric conditions. Principal research programs include studies of radio emissions from many types of objects, especially the cores of supernovas called pulsars; radar studies of comets and asteroids; and ionospheric studies.
References in periodicals archive ?
That scheme runs search programs as screensavers on millions of home computers to sift through the vast amount of data from the giant Arecibo telescope in Puerto Rico.
The Arecibo telescope must listen to the universe's "static noise" and collect and magnify that "noise" a hundredfold.
analyze data from the Arecibo Telescope, the world's largest radio telescope, to find pulsars and other exotic objects;
The bridge was found in data taken between 2008 and 2011 for the Arecibo Galaxy Environment Survey (AGES), which is using the power of the Arecibo Telescope to survey a large area of sky with a high level of sensitivity.
Further number-crunching would reveal a graphic of the solar system and the Arecibo telescope.
They then combined their GBT data with that from earlier studies with other radio telescopes, including the Arecibo telescope in Puerto Rico, the Parkes telescope in Australia, and the Westerbork telescope in the Netherlands.
Each of the radar echoes, received at either the Arecibo telescope or the new Green Bank (W.
Our picture of Kleopatra, taken by the Arecibo telescope in Puerto Pico, shows the asteroid from various different angles.
The burst detected by the Arecibo telescope has three times the maximum dispersion measure that would be expected from a source within the galaxy, the scientists report.
Using the Arecibo telescope in Puerto Rico to measure the velocity of radio-wave-emitting hydrogen at different points around the ring, Schneider deduced how much mass the galactic pair at the ring's center must have to keep the ring in orbit.
He adds that the design of the Arecibo Telescope is also very appropriate for copying on the moon.