the branch of astronomy that detects and studies the radio waves emitted by celestial bodies
The branch of astronomy which utilizes radio waves through the use of radio telescopes to study celestial bodies and occurrences.
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The initial detection of radio waves from an astronomical object was made in the 1930s, when Karl Jansky observed radiation coming from the Milky Way. Subsequent observations have identified a number of different sources of radio emission. These include stars and galaxies, as well as entirely new classes of objects, such as radio galaxies, quasars, pulsars, and masers. The discovery of the cosmic microwave background radiation, which provided compelling evidence for the Big Bang, was made through radio astronomy. Radio astronomy is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve high angular resolution, as the resolving power of an interferometer is set by the distance between its components, rather than the size of its components.
The numerical value of radio astronomy in Chaldean Numerology is: 4
The numerical value of radio astronomy in Pythagorean Numerology is: 7
Images & Illustrations of radio astronomy
Translations for radio astronomy
From our Multilingual Translation Dictionary
Get even more translations for radio astronomy »
Find a translation for the radio astronomy definition in other languages:
Select another language:
Discuss these radio astronomy definitions with the community:
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Use the citation below to add this definition to your bibliography:
"radio astronomy." Definitions.net. STANDS4 LLC, 2017. Web. 10 Dec. 2017. <http://www.definitions.net/definition/radio astronomy>.