radio brightness
| Noun | 1. | radio brightness - the strength of a radio wave picked up by a radio telescope |
| 单词 | radio brightness | |||
| 释义 | radio brightness
radio brightnessradio brightness(surface brightness) The spectral flux density of a radio source per unit solid angle (see brightness temperature). An image of the radio brightness distribution over the sky shows the shape of extended radio sources in a form similar to an optical photograph. Maps made by aperture synthesis instruments, which naturally measure flux densities rather than brightnesses, are often calibrated in flux density units per synthesized beam area.radio brightness
Words related to radio brightness
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