Observatories & Telescopes: 1. Radio
A radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the radio frequency portion of the electromagnetic spectrum where they can detect and collect data on radio sources. Radio telescopes are typically large parabolic ("dish") antenna used singularly or in an array. Radio observatories are located far from major centers of population in order to avoid electromagnetic interference (EMI) from radio, TV, radar, and other EMI emitting devices. This is similar to the locating of optical telescopes to avoid light pollution, with the difference being that radio observatories will be placed in valleys to further shield them from EMI as opposed to clear air mountain tops for optical observatories.[1]
-
Featured Article
Radio Galaxies
Introduction About 10 percent of Active Galactic Nuclei produce powerful outflows which are launched with relativistic (i.e. close to the speed of light) bulk flow velocities. These outflows contain...
Latest News
Astronomers Find Rare Beast by New Means
SOCORRO, NEW MEXICO (Feb. 3, 2010) – For the first time, astronomers have found a supernova explosion with properties similiar to a gamma-ray burst, but without seeing any gamma rays from it....
Articles
Introduction The advent of radio communications at the dawn of the 20th century soon brought humans into conta...
Radio galaxies are cosmic beacons, with the brightest ones beaming nearly a trillion solar-luminosities of rad...
About the Allen Telescope Array The Allen Telescope Array (ATA) is a joint effort of the SETI Institute and th...
The European Space Agency (ESO) operates the Atacama Pathfinder EXperiment telescope, APEX, at the highest obs...
The Arecibo Observatory (now officially the National Astronomy and Ionosphere Center "NAIC") had its origins i...
Introduction La Silla Paranal Observatory Northern Chile: La Silla, Paranal and Chajnantor. RSS Feed Contact P...
Frontends Heterodyne Receivers EmirforAstronomers : new EMIR (Eight MIxer Receiver) HeraforAstronomers : HERA...
News Articles
Max-Planck-Institute for Radio Astronomy (Apr. 22, 2009) Scientists from the Max Planck Institute for Radi...
Harvard-Smithsonian CFA (Nov. 3, 2009) Nearly 100 years ago, scientists detected the first signs of cosmic...
Contact Us
Send to a Friend
