galactic background emission

  • 1Cosmic infrared background — (CIB) is a mysterious infrared light coming from outer space. It is slowly being resolved into specific sources by infrared telescopes. In some ways it is analogous to the cosmic microwave background, but at shorter wavelengths. Contents 1… …

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  • 2Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …

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  • 3Cosmic Background Explorer — (COBE) General information NSSDC ID 1989 089A Organization NASA …

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  • 4X-ray background — The observed X ray background is thought to result from, at the soft end (below 0.3 keV), Galactic X ray emission (the galactic X ray background), and, at the hard end (above 0.3keV), from a combination of many unresolved X ray sources outside of …

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  • 5Cosmic microwave background experiments — [ Cosmic background (CMB) temperature on the celestial sphere as determined with the COBE satellite, (top) uncorrected, (middle) corrected for the dipole term due to our peculiar velocity, (bottom) corrected for contributions from the dipole term …

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  • 6Megamaser — A megamaser is a type of astrophysical maser, which is a naturally occurring source of stimulated spectral line emission. Megamasers are distinguished from astrophysical masers by their large isotropic luminosity. Megamasers produce roughly 103… …

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  • 7Gart Westerhout — Summary Biography Gart Westerhout (1927 ) is a Dutch astronomer. Well before completing his university studies at Leiden, he had already become well established internationally as a radio astronomer in The Netherlands, specializing in studies of… …

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  • 8Archeops — is a balloon borne instrument dedicated to measure the Cosmic microwave background (CMB) temperature anisotropies.It aimed at measuring the cosmic background emitted just after the Big Bang. The study of this radiation is essential to obtain… …

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  • 9Dust — For other uses, see Dust (disambiguation). A dust storm blankets Texas homes, in 1935. Dust consists of particles in the atmosphere that arise from various sources such as soil dust lifted up by wind (an Aeolian process), volcanic eruptions, and… …

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  • 10Sky Polarization Observatory — The Sky Polarization Observatory (SPOrt) will launch 2007 to the International Space Station for a planned 2 year mission. There it will observe 80% of the sky for the Cosmic microwave background radiation in the frequency range from 20 100 GHz.… …

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  • 11cosmos — /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

  • 12List 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 …

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  • 13astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,&#8230; …

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  • 14Milky Way Galaxy — Large spiral galaxy (roughly 150,000 light years in diameter) that contains Earth s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky defining the plane of&#8230; …

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  • 15Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …

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  • 16nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula …

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  • 17galaxy — /gal euhk see/, n., pl. galaxies. 1. Astron. a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. b. (usually cap.) See Milky Way. 2. any large and brilliant or impressive&#8230; …

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  • 18Redshift — This article is about the astronomical phenomenon. For other uses, see Redshift (disambiguation). Physical cosmology …

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  • 19star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,&#8230; …

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  • 20Black hole — For other uses, see Black hole (disambiguation). Simulated view of a black hole (center) in front of the Large Magellanic Cloud. Note the gravitat …

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