astronomical scintillation

天文闪鑠

Atmospheric Sciences (English-Chinese) dictionary. 2014.

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  • Scintillation (astronomy) — Scintillation or twinkling are generic terms for rapid variations in apparent brightness or color of a distant luminous object viewed through the atmosphere.If the object lies outside the earth s atmosphere, as in the case of stars and planets,… …   Wikipedia

  • Scintillation — can refer to:*Scintillation (astronomy), atmospheric effects which influence astronomical observations *Scintillation (physics), a flash of light produced in certain materials when they absorb ionizing radiation *Scintillation (radar), an… …   Wikipedia

  • Astronomical seeing — Schematic diagram illustrating how optical wavefronts from a distant star may be perturbed by a layer of turbulent mixing in the atmosphere. The vertical scale of the wavefronts plotted is highly exaggerated. Astronomical seeing refers to the… …   Wikipedia

  • 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

  • Ooty Radio Telescope — Radio Telescope at Ooty Organization Tata Institute of Fundamental Research …   Wikipedia

  • David L. Fried — is a scientist, best known for his contributions to optics. Fried described what has come to be known as Fried s seeing diameter, or r0 (usually pronounced r naught). The seeing diameter is effectively a limiting aperture due to atmospheric… …   Wikipedia

  • Pulsar — Pour les articles homonymes, voir Pulsar (homonymie). Un pulsar est le nom donné à l objet astrophysique produisant un signal périodique, de période allant de l ordre de la milliseconde à quelques dizaines de secondes. Il est considéré comme… …   Wikipédia en Français

  • Pulsars — Pulsar Pour les articles homonymes, voir Pulsar (homonymie). Un pulsar est le nom donné à une étoile à neutrons, tournant très rapidement sur elle même (période typique de l ordre de la seconde, voire beaucoup moins pour les pulsars milliseconde) …   Wikipédia en Français

  • Crab Pulsar — The Crab Nebula, which contains the Crab Pulsar. Image combines optical data from Hubble (in red) and X ray images from Chandra (in blue). NASA/CXC/ASU/J. Hester et al.[1] …   Wikipedia

  • Antony Hewish — Infobox Scientist name = Antony Hewish image width = 150px caption = Antony Hewish birth date = May 11, 1924 (age 84) nationality = United Kingdom field = Radio astronomy known for = Pulsars religion = Christian prizes = Nobel Prize for Physics… …   Wikipedia

  • Gamma ray spectrometer — A Gamma Ray Spectrometer, or (GRS), is an instrument for measuring the distribution (or spectrum see figure) of the intensity of gamma radiation versus the energy of each photon. Gamma rays are electromagnetic radiation at the short wavelength,… …   Wikipedia

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