radio astronomer
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radio astronomer — noun : a specialist in radio astronomy * * * radio astronomer, an expert in radio astronomy … Useful english dictionary
radio astronomer — noun see radio astronomy … New Collegiate Dictionary
Radio astronomy — is a subfield of astronomy that studies celestial objects at radio frequencies. The field originated from the discovery that many astronomical objects emit radiation in the radio wavelengths as well as optical ones. The great advances in radio… … Wikipedia
Radio spectrum pollution — is the straying of waves in the radio and electromagnetic spectrums outside their allocations that cause problems for some activities. It is a specialised form of light pollution, and of particular concern to radio astronomers. See also *… … Wikipedia
radio astronomy — n. the branch of astronomy that deals with radio frequency radiation from space in order to obtain data and information about particular regions in the universe radio astronomer n … English World dictionary
radio astronomy — noun Date: 1948 astronomy dealing with radio waves received from outside the earth s atmosphere • radio astronomer noun • radio astronomical adjective … New Collegiate Dictionary
Radio clock — A radio clock is a clock that is synchronized by a time code bit stream transmitted by a radio transmitter connected to a time standard such as an atomic clock. Such a clock may be synchronized to the time sent by a single transmitter, such as… … Wikipedia
radio source — Astron. a cosmic object or phenomenon, as a galaxy, pulsar, quasar, or the remnant of a supernova or of a galactic collision, that emits radio waves. [1945 50] * * * ▪ astronomy in astronomy, any of various objects in the universe that emit … Universalium
radio and radar astronomy — Study of celestial bodies by measuring the energy they emit or reflect at radio wavelengths. It began in 1931 with Karl Jansky s discovery of radio waves from an extraterrestrial source. After 1945, huge dish antennas, improved receivers and data … Universalium
Astronomical radio source — Radio sources are objects in outer space that emit strong radio waves. Radio emission comes from hot gas, electrons spiraling in magnetic fields and specific wavelengths emitted by atoms and molecules in space.In 1932, radio astronomer Karl… … Wikipedia
