radio emission


Also found in: Thesaurus, Encyclopedia, Wikipedia.
Related to radio emission: solar radio emission
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.radio emission - an electromagnetic wave with a wavelength between 0.5 cm to 30,000 mradio emission - an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
electromagnetic radiation, electromagnetic wave, nonparticulate radiation - radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
sky wave - a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface
ground wave - a radio wave propagated on or near the earth's surface
radio signal - a radio wave used to transmit and receive messages
radio spectrum, radio-frequency spectrum - the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
carrier wave, carrier - a radio wave that can be modulated in order to transmit a signal
short wave - a radio wave with a wavelength less than 100 meters (a frequency greater than 3 megahertz)
medium wave - a radio wave with a wavelength between 100 and 1000 meters (a frequency between 300 kilohertz and 3000 kilohertz)
long wave - a radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz)
Translations
References in periodicals archive ?
Contract notice: support service in certain activities related to the control of radio emission levels in relation to health
Our observations thus support a scenario in which both the X-ray and radio emission are the afterglow of an outflow, although the exact origin of the outflow is still uncertain," the researchers wrote in the study.
The collisions generated shock waves that set off a celestial fireworks display of bright radio emission, seen as red and orange.
Conversely, radio emission comes from the star's magnetic poles, explaining why Geminga seems to be radio quiet when B0355+54 isn't.
But the observational discovery of these compact objects was only done in the middle of the 1960s from the measurement of an unusual Dirac-delta-shape pulse-like radio emission from the Crab Nebula [2,3] first observed by Chinese astronomers in 1054.
Later observations from the telescopes of the European VLBI network (EVN) and the Very Long Baseline Array (VLBA) in the USA revealed two distinct knots of radio emission.
South Africa's KAT-7 telescope, a sevendish array which is a precursor to the much larger MeerKAT telescope in the Karoo and to the Square Kilometre Array, has reached another major milestone by observing the radio emission from the neutral hydrogen gas (HI) in a nearby galaxy.
By a happy accident, the telescopes will be sensitive to just the kind of radio emission that our civilisation is leaking into space," said scientist Dr Abraham Loeb, from Harvard University in the US.
The strong radio emission results from two jets of energetic particles shooting away from the center of the quasar in opposite directions.
afterglow emission that initially begins in the gamma-ray phase and subsequently evolves into X-Ray, optical, and radio emission as the blast wave is decelerated by the ambient medium.
Fast radio bursts are brief, bright pulses of radio emission from distant but so far unknown sources, and FRB 121102 is the only one known to repeat: more than 200 high-energy bursts have been observed coming from this source, which is located in a dwarf galaxy about 3 billion light-years from Earth," a statement Wednesday from UC Berkeley explained.
Using the Very Large Array of the National Radio Astronomy Observatory in the US, the team observed radio emission from hydrogen in a distant galaxy and found that it would have contained billions of young, massive stars surrounded by clouds of hydrogen gas.

Full browser ?