extragalactic radio sources

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• Third Cambridge Catalogue of Radio Sources — Infobox Astronomical survey name = 3C caption = organization = Radio Astronomy Group, University of Cambridge alt names = wavelength = 159 MHz radio source = Mullard Radio Astronomy Observatory goals = First detailed survey of radio sources… …   Wikipedia

• Radio galaxy — Radio galaxies and their relatives, radio loud quasars and blazars, are types of active galaxy that are very luminous at radio wavelengths (up to 1038 W between 10 MHz and 100 GHz). The radio emission is due to the synchrotron process. The… …   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

• Extragalactic background light — The Extragalactic Background Light (EBL) or simply the extragalactic background (EGB)is the faint diffuse light of the night sky, consisting of the combined flux of all extragalactic sources. Its main significance for astronomers is that it… …   Wikipedia

• X-shaped radio galaxy — X shaped (or winged ) radio galaxies are a class of extragalactic radio source that exhibit two, low surface brightness radio lobes (the wings ) oriented at an angle to the active, or high surface brightness, lobes. Both sets of lobes pass… …   Wikipedia

• NASA/IPAC Extragalactic Database — The NASA/IPAC Extragalactic Database (NED) is an on line astronomical database for astronomers that collates and cross correlates astronomical information on extragalactic objects (galaxies, quasars, radio, x ray and infrared sources, etc.). NED… …   Wikipedia

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium

• telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …   Universalium

• List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …   Wikipedia

• Radiogalaxia — Saltar a navegación, búsqueda Las radiogalaxias y sus parientes, quásares radio intensos y blazars, son tipos de galaxia activa que son muy luminosas en frecuencias de radio (de hasta 1038 W entre 10 MHz y 100 GHz). La emisión de radio es debida… …   Wikipedia Español

• Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure — Timeline of galaxies, clusters of galaxies, and large scale structure of the cosmosPre 20th Century* 400s BC Democritus proposes that the bright band in the night sky known as the Milky Way might consist of stars, * 300s BC Aristotle believes the …   Wikipedia