Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/X-ray_astronomy> ?p ?o }
- X-ray_astronomy abstract "X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects. X-radiation is absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites. X-ray astronomy is the space science related to a type of space telescope that can see farther than standard light-absorption telescopes, such as the Mauna Kea Observatories, via x-ray radiation.X-ray emission is expected from astronomical objects that contain extremely hot gasses at temperatures from about a million kelvin (K) to hundreds of millions of kelvin (MK). Although X-rays have been observed emanating from the Sun since the 1940s, the discovery in 1962 of the first cosmic X-ray source was a surprise. This source is called Scorpius X-1 (Sco X-1), the first X-ray source found in the constellation Scorpius. The X-ray emission of Scorpius X-1 is 10,000 times greater than its visual emission, whereas that of the Sun is about a million times less. In addition, the energy output in X-rays is 100,000 times greater than the total emission of the Sun in all wavelengths. Based on discoveries in this new field of X-ray astronomy, starting with Scorpius X-1, Riccardo Giacconi received the Nobel Prize in Physics in 2002. It is now known that such X-ray sources as Sco X-1 are compact stars, such as neutron stars or black holes. Material falling into a black hole may emit X-rays, but the black hole itself does not. The energy source for the X-ray emission is gravity. Infalling gas and dust is heated by the strong gravitational fields of these and other celestial objects.Many thousands of X-ray sources are known. In addition, the space between galaxies in galaxy clusters is filled with a very hot, but very dilute gas at a temperature between 10 and 100 megakelvins (MK). The total amount of hot gas is five to ten times the total mass in the visible galaxies.".
- X-ray_astronomy thumbnail Ill-2_O3.jpg?width=300.
- X-ray_astronomy wikiPageExternalLink high_energy_source.pl.
- X-ray_astronomy wikiPageExternalLink how_many_xray.html.
- X-ray_astronomy wikiPageExternalLink imagine.gsfc.nasa.gov.
- X-ray_astronomy wikiPageExternalLink ep-135-x-ray-astronomy.
- X-ray_astronomy wikiPageExternalLink www.wikisky.org.
- X-ray_astronomy wikiPageID "44062".
- X-ray_astronomy wikiPageLength "59524".
- X-ray_astronomy wikiPageOutDegree "233".
- X-ray_astronomy wikiPageRevisionID "665354172".
- X-ray_astronomy wikiPageWikiLink Active_galactic_nucleus.
- X-ray_astronomy wikiPageWikiLink Aerobee.
- X-ray_astronomy wikiPageWikiLink Alfvén_wave.
- X-ray_astronomy wikiPageWikiLink Angular_resolution.
- X-ray_astronomy wikiPageWikiLink Antarctica.
- X-ray_astronomy wikiPageWikiLink Arthur_E._Kennelly.
- X-ray_astronomy wikiPageWikiLink Arthur_Edwin_Kennelly.
- X-ray_astronomy wikiPageWikiLink Astrochemistry.
- X-ray_astronomy wikiPageWikiLink Astrometry.
- X-ray_astronomy wikiPageWikiLink Astronomical_Netherlands_Satellite.
- X-ray_astronomy wikiPageWikiLink Astronomical_object.
- X-ray_astronomy wikiPageWikiLink Astronomical_unit.
- X-ray_astronomy wikiPageWikiLink Astronomy.
- X-ray_astronomy wikiPageWikiLink Astrophysics.
- X-ray_astronomy wikiPageWikiLink Atmosphere_of_Earth.
- X-ray_astronomy wikiPageWikiLink Atom.
- X-ray_astronomy wikiPageWikiLink Balloon.
- X-ray_astronomy wikiPageWikiLink Balloon-borne_telescope.
- X-ray_astronomy wikiPageWikiLink Balloons_for_X-ray_astronomy.
- X-ray_astronomy wikiPageWikiLink BeppoSAX.
- X-ray_astronomy wikiPageWikiLink Beta_Hydri.
- X-ray_astronomy wikiPageWikiLink Betelgeuse.
- X-ray_astronomy wikiPageWikiLink Binary_star.
- X-ray_astronomy wikiPageWikiLink Black_Brant_(rocket).
- X-ray_astronomy wikiPageWikiLink Black_hole.
- X-ray_astronomy wikiPageWikiLink Black_holes.
- X-ray_astronomy wikiPageWikiLink Bremsstrahlung.
- X-ray_astronomy wikiPageWikiLink Capella.
- X-ray_astronomy wikiPageWikiLink Capella_(star).
- X-ray_astronomy wikiPageWikiLink Carnegie_Institution_for_Science.
- X-ray_astronomy wikiPageWikiLink Carnegie_Institution_of_Washington.
- X-ray_astronomy wikiPageWikiLink Cataclysmic_variable_star.
- X-ray_astronomy wikiPageWikiLink Category:Astronomical_X-ray_sources.
- X-ray_astronomy wikiPageWikiLink Category:Astronomical_imaging.
- X-ray_astronomy wikiPageWikiLink Category:Observational_astronomy.
- X-ray_astronomy wikiPageWikiLink Category:Plasma_physics.
- X-ray_astronomy wikiPageWikiLink Category:X-ray_astronomy.
- X-ray_astronomy wikiPageWikiLink Category:X-ray_telescopes.
- X-ray_astronomy wikiPageWikiLink Celestial_sphere.
- X-ray_astronomy wikiPageWikiLink Chandra_X-ray_Observatory.
- X-ray_astronomy wikiPageWikiLink Comet_Lulin.
- X-ray_astronomy wikiPageWikiLink Compact_star.
- X-ray_astronomy wikiPageWikiLink Compton_scattering.
- X-ray_astronomy wikiPageWikiLink Computation.
- X-ray_astronomy wikiPageWikiLink Constellation.
- X-ray_astronomy wikiPageWikiLink Copernicus_-_Orbiting_Astronomical_Observatory-3.
- X-ray_astronomy wikiPageWikiLink Coronal_cloud.
- X-ray_astronomy wikiPageWikiLink Coronal_mass_ejection.
- X-ray_astronomy wikiPageWikiLink Cosmic_dust.
- X-ray_astronomy wikiPageWikiLink Cosmic_ray.
- X-ray_astronomy wikiPageWikiLink Crab_Nebula.
- X-ray_astronomy wikiPageWikiLink Deacon_(rocket).
- X-ray_astronomy wikiPageWikiLink Earth.
- X-ray_astronomy wikiPageWikiLink Earths_atmosphere.
- X-ray_astronomy wikiPageWikiLink Einstein_Observatory.
- X-ray_astronomy wikiPageWikiLink Electromagnetic_radiation.
- X-ray_astronomy wikiPageWikiLink Electromagnetic_spectrum.
- X-ray_astronomy wikiPageWikiLink Eta_Carinae.
- X-ray_astronomy wikiPageWikiLink Explorer_1.
- X-ray_astronomy wikiPageWikiLink Explorer_3.
- X-ray_astronomy wikiPageWikiLink Field_of_view.
- X-ray_astronomy wikiPageWikiLink Fossil_stellar_magnetic_field.
- X-ray_astronomy wikiPageWikiLink Full_width_at_half_maximum.
- X-ray_astronomy wikiPageWikiLink Galaxies.
- X-ray_astronomy wikiPageWikiLink Galaxy.
- X-ray_astronomy wikiPageWikiLink Galaxy_cluster.
- X-ray_astronomy wikiPageWikiLink Galaxy_clusters.
- X-ray_astronomy wikiPageWikiLink Gamma-ray_astronomy.
- X-ray_astronomy wikiPageWikiLink Gamma_ray.
- X-ray_astronomy wikiPageWikiLink Gemini_(constellation).
- X-ray_astronomy wikiPageWikiLink Geomagnetic_storm.
- X-ray_astronomy wikiPageWikiLink Giant_star.
- X-ray_astronomy wikiPageWikiLink Gravitational_field.
- X-ray_astronomy wikiPageWikiLink Gravitational_fields.
- X-ray_astronomy wikiPageWikiLink Gravity.
- X-ray_astronomy wikiPageWikiLink Gregory_Breit.
- X-ray_astronomy wikiPageWikiLink HEAO_1.
- X-ray_astronomy wikiPageWikiLink HII_region.
- X-ray_astronomy wikiPageWikiLink H_II_region.
- X-ray_astronomy wikiPageWikiLink Heat_conduction.
- X-ray_astronomy wikiPageWikiLink Heaviside.
- X-ray_astronomy wikiPageWikiLink Hercules_X-1.
- X-ray_astronomy wikiPageWikiLink Hermes_(missile_program).
- X-ray_astronomy wikiPageWikiLink Hermes_project.
- X-ray_astronomy wikiPageWikiLink Hertzsprung-Russell_diagram.
- X-ray_astronomy wikiPageWikiLink Hertzsprung–Russell_diagram.
- X-ray_astronomy wikiPageWikiLink High-altitude_balloon.
- X-ray_astronomy wikiPageWikiLink High-mass_X-ray_binaries.
- X-ray_astronomy wikiPageWikiLink High_Energy_Astronomy_Observatory_1.