- Lyman-alpha line
- Lyman-alpha line or Lyman alpha line,a line of hydrogen in the extreme ultraviolet range of the emission spectrum of the sun, representing a large part of the sun's ultraviolet radiation.
Useful english dictionary. 2012.
Lyman-alpha line
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Lyman alpha line — or Lyman alpha line, a line of hydrogen in the extreme ultraviolet range of the emission spectrum of the sun, representing a large part of the sun s ultraviolet radiation … Useful english dictionary
Lyman-alpha line — In physics, the Lyman alpha line is a spectral line of hydrogen, or more generally of one electron ions, in the Lyman series, emitted when the electron falls from the n = 2 orbital to the n = 1 orbital, where n is the principal quantum number. In … Wikipedia
Lyman alpha emitter — Lyman alpha emitters (LAEs) are a type of distant galaxy that emits Lyman alpha radiation. They are extremely distant and becauce of the finite travel time of light they are glimpses of the past history of the universe. They are thought to be the … Wikipedia
Lyman alpha — Lyman alpha, or Ly|man al|pha «LY muhn AL fuh», adjective. of or having to do with the Lyman alpha line. ╂[< E. M. Lyman, born 1910, American physicist] … Useful english dictionary
Lyman-alpha blob — A Lyman alpha blob (LAB) is a huge concentration of a gas emitting the Lyman alpha emission line. The Lyman alpha emission line is produced by recombination of electrons with ionized hydrogen atoms. LABs are some of the largest known individual… … Wikipedia
Lyman-alpha forest — In astronomical spectroscopy, the Lyman alpha forest is the sum of absorption lines arising from the Lyman alpha transition of the neutral hydrogen in the spectra of distant galaxies and quasars.These absorption lines result from intergalactic… … Wikipedia
Lyman series — In physics, the Lyman series is the series of transitions and resulting emission lines of the hydrogen atom as an electron goes from n ge; 2 to n = 1 (where n is the principal quantum number referring to the energy level of the electron). The… … Wikipedia
H-alpha — In physics and astronomy, H alpha, also written Hα, is a specific emission line created by hydrogen at 6562.8 Angstroms.According to the Bohr model of the atom, electrons exist in quantized energy levels surrounding the atom s nucleus. These… … Wikipedia
K-alpha — energy between the electron spin and the orbital momentum of the 2p orbital. K alpha is typically by far the strongest X ray spectral line for an element bombarded with energy sufficient to cause maximally intense X ray emission.The analogous K… … Wikipedia
List of Alpha Phi Alpha brothers — The list of Alpha Phi Alpha brothers (commonly referred to as Alphas cite web |url=http://www.union.arizona.edu/csil/greek/chapters/view.php?id=39 |title=Arizona Student Unions |work=Fraternity and sorority programs |publisher=University of… … Wikipedia
