X ray telescopes

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• Télescopes spatiaux — Télescope spatial Le télescope spatial Hubble en orbite autour de la Terre. Un télescope spatial est un télescope placé au delà de l atmosphère. Le télescope spatial présente l avantage par rapport à son homologue terrestre de ne pas être… …   Wikipédia en Français

• Ray tracing (physics) — In physics, ray tracing is a method for calculating the path of waves or particles through a system with regions of varying propagation velocity, absorption characteristics, and reflecting surfaces. Under these circumstances, wavefronts may bend …   Wikipedia

• X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …   Wikipedia

• Chandra X-ray Observatory — and Inertial Upper Stage sit inside the payload bay on Space Shuttle Columbia mission STS 93 General information …   Wikipedia

• List of space telescopes — This is a list of astronomical space telescopes. The list is divided up into the major frequency ranges: gamma ray, x ray, ultraviolet, visible, infrared, microwave and radio. Telescopes that work in multiple frequency bands are in all of the… …   Wikipedia

• Compton Gamma Ray Observatory — General information NSSDC ID 1991 027B Organization NASA …   Wikipedia

• Cosmic-ray observatory — A cosmic ray observatory is a scientific installation built to detect high energy particles coming from space called cosmic rays. This typically includes photons (high energy light), electrons, protons, and some heavier nuclei, as well as… …   Wikipedia

• X-ray telescope —       instrument designed to detect and resolve X rays from sources outside the Earth s atmosphere. Because of atmospheric absorption, X ray telescopes must be carried to high altitudes by rockets or balloons or placed in orbit outside the… …   Universalium

• Chandra X-ray Observatory — ▪ United States satellite  U.S. satellite, one of the National Aeronautics and Space Administration (NASA) fleet of “Great Observatories” satellites, which is designed to make high resolution images of celestial X ray sources. In operation since… …   Universalium

• x-ray — /eks ray /, n. Also, x ray, X ray. 1. Physics. a. Often, x rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases. b. such radiation having wavelengths in the… …   Universalium

• gamma ray — Physics. 1. a photon of penetrating electromagnetic radiation (gamma radiation) emitted from an atomic nucleus. 2. a photon emitted by an electron as a result of internal conversion. 3. electromagnetic radiation with wavelengths shorter than… …   Universalium