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Encyclopedia > Mullard Radio Astronomy Observatory

Mullard Radio Astronomy Observatory is home to a number of large aperture synthesis radio telescopes, including the One-Mile Telescope, 5km Ryle Telescope, and the Arcminute Microkelvin Imager. Radio interferometry started in the mid 1940s on the outskirts of Cambridge, but with funding from the Science Research Council and a donation of £100,000 from Mullard Limited, construction of the Mullard Radio Astronomy Observatory commenced at Lord's Bridge, a few kilometers to the west of Cambridge. The observatory was founded under Martin Ryle of the Radio-Astronomy Group of the Cavendish Laboratory, University of Cambridge. This group is now known as the Cavendish Astrophysics Group. Aperture synthesis is a type of interferometry that mixes signals from a collection instruments to produce measurements having the same angular resolution as an instrument the size of the entire collection. ... The Parkes 64 metre radio telescope in New South Wales, Australia (the bigger of the two shown) In contrast to an ordinary telescope, which produces visible light images, a radio telescope sees radio waves emitted by radio sources, typically by means of a large parabolic (dish) antenna, or arrays of... One antenna from the One-Mile Telescope The One-Mile Telescope at the Mullard Radio Astronomy Observatory (MRAO) was completed by the Radio Astronomy Group of Cambridge University in 1964. ... The Ryle Telescope was re-arranged to form the long baseline array of AMI after this photo was taken. ... The long baseline array of AMI, utilizing receivers from the Ryle Telescope. ... Mullard Limited was a British manufacturer of electronic components. ... Sir Martin Ryle (September 27, 1918 – October 14, 1984) was a British radio astronomer who developed revolutionary radio telescope systems (see e. ... The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at Cambridge University. ... The Cavendish Laboratory is Cambridge Universitys Department of Physics, and is part of the universitys School of Physical Sciences. ... The University of Cambridge is the second-oldest university in the English-speaking world. ... The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at Cambridge University. ...


The site is located at Lord's Bridge, Cambridgeshire on a former ordnance storage facility, next to the now-abandoned Cambridge-Bedford railway line. A portion of the track bed of the old line, running nearly East-West for several miles, was used to form the main part of the '5km' radio-telescope and the Cambridge Low Frequency Synthesis Telescope. Cambridgeshire (abbreviated Cambs) is a county in England, bordering Lincolnshire to the north, Norfolk to the northeast, Suffolk to the east, Essex and Hertfordshire to the south, and Bedfordshire and Northamptonshire to the west. ... The Ryle Telescope was re-arranged to form the long baseline array of AMI after this photo was taken. ... The Cambridge Low-Frequency Synthesis Telescope (CLFST) is an east-west aperture synthesis radio telescope currently operating at 151 MHz. ...


Telescopes at the observatory

Telescope Year built Status
Arcminute Microkelvin Imager short baseline array 2004 24 hour operation
Very Small Array (moved to Tenerife in 1999) 1998 24 hour operation
Cosmic Anisotropy Telescope made first high-resolution maps of Cosmic Microwave Background fluctuations 1995 Decomissioned
Cambridge Optical Aperture Synthesis Telescope (COAST) first aperture synthesis at optical wavelengths 1993 Operated on clear nights
One receiver from the MERLIN array 1990 24 hour operation
Cambridge Low Frequency Synthesis Telescope (CLFST) 1980 24 hour operation
Ryle Telescope (formerly 5 Kilometre Telescope, also known as the Arcminute Microkelvin Imager long baseline array) 1971 24 hour operation
Half-Mile Telescope 1968 Decomissioned
Interplanetary Scintillation Array discovered first pulsar 1967 Essentially retired
One-Mile Telescope 1964 Decomissioned except for one dish used by undergraduates and amateur astronomers
4C Array, first telescope at the Cambridge's new observatory, made the 4C catalogue 1958 Decomissioned

The long baseline array of AMI, utilizing receivers from the Ryle Telescope. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... The Very Small Array is a 14-element interferometer perched at an elevation of 3000 metres on Tenerife in the Canary Islands. ... The Anaga Mountain Range in the north of Tenerife Tenerife (English also Teneriffe), a Spanish island, is the largest of the seven Canary Islands in the Atlantic Ocean off the coast of Africa. ... 1999 is a common year starting on Friday of the Common Era, and was designated the International Year of Older Persons by the United Nations. ... 1998 is a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean. ... The Cosmic Anisotropy Telescope CAT was a three-element interferometer for cosmic microwave background observations at 13 to 17 GHz, based at the Mullard Radio Astronomy Observatory. ... WMAP image of the CMB anisotropy,Cosmic microwave background radiation(June 2003) The cosmic microwave background radiation (CMB) is a form of electromagnetic radiation that fills the whole of the universe. ... 1995 was a common year starting on Sunday of the Gregorian calendar. ... COAST, the Cambridge Optical Aperture Synthesis Telescope, is a multi-element optical interferometer with baselines of up to 100 metres, designed to observe stars with angular resolution as high as one thousandth of one arcsecond (much higher resolution than can be obtained with individual telescopes such as the Hubble Space... Aperture synthesis is a type of interferometry that mixes signals from a collection instruments to produce measurements having the same angular resolution as an instrument the size of the entire collection. ... See also list of optical topics. ... 1993 is a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... Merlin Ambrosius (Welsh: Myrddin Emrys; also known as Myrddin Wyllt (Merlin the wild), Merlin Caledonensis (Scottish Merlin), Merlinus, and Merlyn) is the personage best known as the mighty wizard featured in accounts of Arthur of Britain starting with Geoffrey of Monmouths Historia Regum Britanniae. ... 1990 is a common year starting on Monday of the Gregorian calendar. ... The Cambridge Low-Frequency Synthesis Telescope (CLFST) is an east-west aperture synthesis radio telescope currently operating at 151 MHz. ... 1980 is a leap year starting on Tuesday. ... The Ryle Telescope was re-arranged to form the long baseline array of AMI after this photo was taken. ... The long baseline array of AMI, utilizing receivers from the Ryle Telescope. ... 1971 is a common year starting on Friday (click for link to calendar). ... The Half-Mile Telescope was constructed in 1968 (2 aerials) at the Mullard Radio Astronomy Observatory with 2 more aerials being added in 1972, using donated dishes (total cost was £70,000). ... 1968 was a leap year starting on Monday (the link is to a full 1968 calendar). ... 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. ... 1967 was a common year starting on Sunday of the Gregorian calendar. ... One antenna from the One-Mile Telescope The One-Mile Telescope at the Mullard Radio Astronomy Observatory (MRAO) was completed by the Radio Astronomy Group of Cambridge University in 1964. ... 1964 was a leap year starting on Wednesday (link will take you to calendar). ... The 4C Array is a cylindrical paraboloid radio telescope at the Mullard Radio Astronomy Observatory, similar in design to the Molonglo Observatory Synthesis Telescope. ... The Fourth Cambridge Survey (4C) is an astronomical catalogue of celestial radio sources as measured at 178 MHz using the 4C Array. ... 1958 was a common year starting on Wednesday of the Gregorian calendar. ...

External Links


  Results from FactBites:
 
Radio astronomy - Wikipedia, the free encyclopedia (919 words)
Radio astronomy is the study of celestial phenomena through measurement of the characteristics of radio waves emitted by physical processes occurring in space.
A 151 MHz map of the region: 140° to 180° galactic longitude; -5° to 5° galactic latitude from the CLFST at the Mullard Radio Astronomy Observatory.
Radio astronomy has led to substantial increases in astronomical knowledge, particularly with the discovery of several classes of new objects, including pulsars, quasars and radio galaxies.
  More results at FactBites »


 

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