4C Array

4C Array

Infobox Telescope
name = 4C Array


caption =
organization = Mullard Radio Astronomy Observatory
location = Lord's Bridge, nr. Cambridge, England
coords = coord|52.164147|N|0.033174|W|display=inline,title
altitude =
weather =
wavelength = 1.7m
built = 1958
first_light =
website =
style = Cylindrical paraboloid
diameter =
angular_resolution =
area =
focal_length =
mounting =
The 4C Array is a cylindrical paraboloid radio telescope at the Mullard Radio Astronomy Observatory. It is similar in design to the Molonglo Observatory Synthesis Telescope. It is 450 m long, 20 m wide, with a second, moveable element (now mostly removed; some of it is still visible, beyond COAST). The first large aperture synthesis telescope (1958), it was also the first new instrument to be built at Lord's Bridge, after the Observatory was moved there in 1957, and needed 64 km (40 miles) of reflector wire (since removed). The 4C operated at 178 MHz (1.7 m), and located nearly 5000 sources of the 4C (4th Cambridge) catalogue published in 1965 and 1966, which helped establish the evolution of the radio galaxy population of the universe. The telescope is now inoperable.

External links

* [http://maps.google.com/maps?t=k&hl=en&ll=52.164147,0.033174&spn=0.004021,0.009238 The 4C array on Google maps] , flanked by the CAT enclosure (upper left) and the One-Mile and Half-Mile Telescopes (below)


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Array — Ar*ray , n. [OE. arai, arrai, OF. arrai, arrei, arroi, order, arrangement, dress, F. arroi; a (L. ad) + OF. rai, rei, roi, order, arrangement, fr. G. or Scand.; cf. Goth. raidjan, garaidjan, to arrange, MHG. gereiten, Icel. rei[eth]i rigging,… …   The Collaborative International Dictionary of English

  • array — ar·ray 1 /ə rā/ vt: to set (a jury) for trial; specif: to set (a jury) by calling out the names of the jurors one at a time compare impanel array 2 n: the group of people summoned to serve as jurors from which the jury will be chosen; also: a… …   Law dictionary

  • array — ar‧ray [əˈreɪ] noun [countable] 1. a range of many different things: • a vast array of electronic and consumer products 2. COMPUTING a set of computer memory units arranged in rows across or down: • a device that stores massive amounts of… …   Financial and business terms

  • Array processing — is signal processing of the outputs of an array of sensors to: * Enhance the signal to interference plus noise ratio (SINR) compared to that of a single sensor using conventional or adaptive beamforming. * Determine the number of emitting sources …   Wikipedia

  • Array comparative genomic hybridization — (also CMA, Chromosomal Microarray Analyisis, Microarray based comparative genomic hybridization, array CGH, a CGH, or aCGH) detects genomic copy number variations at a higher resolution level than chromosome based comparative genomic… …   Wikipedia

  • array — [n1] collection, considerable group arrangement, batch, body, bunch, bundle, clump, cluster, design, display, disposition, exhibition, formation, host, lineup, lot, multitude, order, parade, pattern, set, show, supply, throng; concepts… …   New thesaurus

  • Array — Ar*ray , v. t. [imp. & p. p. {Arrayed}; p. pr. & vb. n. {Arraying}.] [OE. araien, arraien, fr. OE. arraier, arreier, arreer, arroier, fr. arrai. See {Array}, n.] 1. To place or dispose in order, as troops for battle; to marshal. [1913 Webster] By …   The Collaborative International Dictionary of English

  • ARRAY Magazine — is a New York based interior design, lifestyle and culture magazine.With 40,000 readers every quarter, ARRAY is geared toward Interior professionals and their clients.External links* [http://www.arrayny.com ARRAY Homepage] …   Wikipedia

  • Array DVD magazine — is a DVD magazine that focuses on black actors and actresses in film and television. It is the first magazine, in its class, to present this concept. The magazine has a U.S. circulation of 25,000 and is circulated in both printed and DVD formats …   Wikipedia

  • Array-Element — Array Element,   die Variable oder das Datenelement in einem Array …   Universal-Lexikon

  • Array-Prozessor — Array Prozessor,   Kombination mehrerer gleichartiger integrierter Schaltkreise oder auch mehrerer gleichartiger Prozessoren zu einer Einheit. Die Einzelelemente des Arrays arbeiten gleichzeitig und parallel; sie werden häufig vom zentralen… …   Universal-Lexikon

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”