Interplanetary Scintillation Array
- Interplanetary Scintillation Array
The Interplanetary Scintillation Array ("IPS Array" or "Pulsar Array") was built at the Mullard Radio Astronomy Observatory in 1967 and originally covered four acres (16,000 m²). It was extended in 1978 to nine, and re-furbished in 1989. It operates at 81.5 MHz (3.7 m wavelength), and is made up of 4096 dipoles in a phased array. 14 beams can map the northern sky in one day. Sheep are used to keep grass away from the aerials as a lawnmower would not fit. It was designed by Antony Hewish to measure the high-frequency fluctuations of radio sources, originally for monitoring interplanetary scintillation. Antony Hewish received a Nobel prize after the high time-resolution of the array allowed the detection of pulsars by Jocelyn Bell in 1967. The IPS has more recently been used to track and help forecast interplanetary weather, and specifically to monitor the solar wind. It is now essentially retired, and has lost significant fraction of its area. The telescope was operated by the Cavendish Astrophysics Group.
External links
* [http://maps.google.com/maps?t=k&hl=en&ll=52.16315,0.034354&spn=0.002011,0.004619 The field containing the rectangular wire grid of the Interplanetary Scintillation Array on Google Maps]
Wikimedia Foundation.
2010.
Look at other dictionaries:
Cavendish Astrophysics Group — The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at the University of Cambridge. The group operates all of the telescopes at the Mullard Radio Astronomy Observatory except for the 32m… … Wikipedia
Antony Hewish — Infobox Scientist name = Antony Hewish image width = 150px caption = Antony Hewish birth date = May 11, 1924 (age 84) nationality = United Kingdom field = Radio astronomy known for = Pulsars religion = Christian prizes = Nobel Prize for Physics… … Wikipedia
Mullard Radio Astronomy Observatory — One antenna of the One Mile Telescope at the observatory The foundation plaque … Wikipedia
Antony Hewish — (11 mai 1924 à Fowey, Cornouailles) est un astronome britannique. Lui et Martin Ryle sont colauréats du prix Nobel de physique de 1974 « pour leurs recherches pionnières en radio astrophysique : Ryle pour ses observations et ses… … Wikipédia en Français
Antony Hewish — Saltar a navegación, búsqueda Antony Hewish nació en Fowey, Cornualles, el 11 de mayo de 1924. Este radioastrónomo británico ganó el Premio Nobel de Física en 1974 (junto con el radioastrónomo Martin Ryle) por su trabajo en el desarrollo de la… … Wikipedia Español
Ooty Radio Telescope — Radio Telescope at Ooty Organization Tata Institute of Fundamental Research … Wikipedia
List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general … Wikipedia
Cosmic ray — For the film, see Cosmic Ray (film). Cosmic radiation redirects here. For some background types of cosmic radiation, see cosmic background radiation and cosmic background. The energy spectrum for cosmic rays Cosmic rays are energetic charged… … Wikipedia
Hewish , Antony — (1924–) British radio astronomer Hewish was born at Fowey in Cornwall, and studied at Cambridge University. He obtained his BA in 1948 and his PhD in 1952 after wartime work with the Royal Aircraft Establishment, Farnborough. He lectured in… … Scientists
Active SETI — A representation of the 1679 bit Arecibo message. Active SETI (Active Search for Extra Terrestrial Intelligence) is the attempt to send messages to intelligent aliens. Active SETI messages are usually in the form of radio signals. Physical… … Wikipedia
