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Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Gravitational-wave_astronomy> ?p ?o }

• Gravitational-wave_astronomy abstract "Gravitational-wave astronomy is an emerging branch of observational astronomy which aims to use gravitational waves (minute distortions of spacetime predicted by Einstein's theory of general relativity) to collect observational data about objects such as neutron stars and black holes, events such as supernovae, and processes including those of the early universe shortly after the Big Bang.Gravitational waves have a solid theoretical basis, founded upon the theory of relativity. They were first predicted by Einstein in 1916; although a specific consequence of general relativity, they are a common feature of all theories of gravity that obey special relativity. Indirect observational evidence for their existence first came in 1974 from measurements of the Hulse–Taylor binary pulsar, whose orbit evolves exactly as would be expected for gravitational wave emission. Richard Hulse and Joseph Taylor were awarded the 1993 Nobel Prize in Physics for this discovery. Subsequently, many other binary pulsars (including one double pulsar system) have been observed, all fitting gravitational-wave predictions. These observations show the effect of gravitational-wave emission, but do not allow us to measure the gravitational waves themselves.Cosmic inflation, a hypothesized period when the universe rapidly expanded 10−36 s after the Big Bang, would have given rise to gravitational waves; they would have left a characteristic imprint in the polarization of the CMB radiation. It is possible to calculate the properties of the primordial gravitational waves from measurements of the patterns in the microwave radiation, and use this to learn about the early universe. Again the gravitational waves are not directly detected, but their presence must be inferred from other astronomical techniques.There are currently several scientific collaborations hoping to make the first direct detection of gravitational waves. There is a world-wide network of ground-based detectors, these are kilometre-scale laser interferometers including: the Laser Interferometer Gravitational-Wave Observatory (LIGO), a joint project between MIT and Caltech which has detectors in Livingston, Louisiana and Hanford, Washington; Virgo, at the European Gravitational Observatory, Cascina, Italy; GEO 600 in Sarstedt, Germany, and the Kamioka Gravitational Wave Detector (KAGRA), operated by the University of Tokyo in the Kamioka Observatory, Japan. LIGO and Virgo are currently being upgraded to their advanced configurations and are due to begin operation in 2015, the more advanced KAGRA is scheduled for 2018. GEO 600 is currently operational, but its sensitivity makes it unlikely to make an observation; its primary purpose is to trial technology. It is hoped that ground-based detectors shall make their first detection by the end of the decade.An alternative means of detection is using pulsar timing arrays (PTAs). There are three consortia, the European Pulsar Timing Array (EPTA), the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), and the Parkes Pulsar Timing Array (PPTA), which co-operate as the International Pulsar Timing Array. These use existing radio telescopes, but since they are sensitive to frequencies in the nanohertz range, many years of observation are needed to detect a signal and detector sensitivity improves gradually. Current bounds are approaching those expected for astrophysical sources.Further in the future, there is the possibility of space-borne detectors. The European Space Agency has selected a gravitational-wave mission for its L3 mission, due to launch 2034, the current concept is the evolved Laser Interferometer Space Antenna (eLISA). Also in development is the Japanese Deci-hertz Interferometer Gravitational wave Observatory (DECIGO).".
• Gravitational-wave_astronomy thumbnail White_dwarfs_circling_each_other_and_then_colliding.gif?width=300.
• Gravitational-wave_astronomy wikiPageExternalLink gravWav.
• Gravitational-wave_astronomy wikiPageExternalLink geo600-has-reached-a-sensitivity-of-2b710-22-221ahz-1.
• Gravitational-wave_astronomy wikiPageExternalLink index.html.
• Gravitational-wave_astronomy wikiPageExternalLink gravity.
• Gravitational-wave_astronomy wikiPageExternalLink general-information.
• Gravitational-wave_astronomy wikiPageID "11084989".
• Gravitational-wave_astronomy wikiPageLength "27797".
• Gravitational-wave_astronomy wikiPageOutDegree "108".
• Gravitational-wave_astronomy wikiPageRevisionID "683286642".
• Gravitational-wave_astronomy wikiPageWikiLink AM_CVn_star.
• Gravitational-wave_astronomy wikiPageWikiLink AM_Canum_Venaticorum_star.
• Gravitational-wave_astronomy wikiPageWikiLink Absorption_(electromagnetic_radiation).
• Gravitational-wave_astronomy wikiPageWikiLink Albert_Einstein.
• Gravitational-wave_astronomy wikiPageWikiLink Astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Big_Bang.
• Gravitational-wave_astronomy wikiPageWikiLink Black_hole.
• Gravitational-wave_astronomy wikiPageWikiLink California_Institute_of_Technology.
• Gravitational-wave_astronomy wikiPageWikiLink Caltech.
• Gravitational-wave_astronomy wikiPageWikiLink Cascina.
• Gravitational-wave_astronomy wikiPageWikiLink Category:Astrophysics.
• Gravitational-wave_astronomy wikiPageWikiLink Category:General_relativity.
• Gravitational-wave_astronomy wikiPageWikiLink Category:Gravitation.
• Gravitational-wave_astronomy wikiPageWikiLink Category:Gravitational-wave_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Category:Observational_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Category:Unsolved_problems_in_physics.
• Gravitational-wave_astronomy wikiPageWikiLink Chronology_of_the_universe.
• Gravitational-wave_astronomy wikiPageWikiLink Compact_object.
• Gravitational-wave_astronomy wikiPageWikiLink Compact_star.
• Gravitational-wave_astronomy wikiPageWikiLink Core-collapse_supernova.
• Gravitational-wave_astronomy wikiPageWikiLink Cosmic_string.
• Gravitational-wave_astronomy wikiPageWikiLink Cosmic_time.
• Gravitational-wave_astronomy wikiPageWikiLink Deci-hertz_Interferometer_Gravitational_wave_Observatory.
• Gravitational-wave_astronomy wikiPageWikiLink Eccentricity_(mathematics).
• Gravitational-wave_astronomy wikiPageWikiLink Einstein.
• Gravitational-wave_astronomy wikiPageWikiLink Electromagnetic_radiation.
• Gravitational-wave_astronomy wikiPageWikiLink Electromagnetic_spectrum.
• Gravitational-wave_astronomy wikiPageWikiLink European_Gravitational_Observatory.
• Gravitational-wave_astronomy wikiPageWikiLink European_Pulsar_Timing_Array.
• Gravitational-wave_astronomy wikiPageWikiLink European_Space_Agency.
• Gravitational-wave_astronomy wikiPageWikiLink Evolved_Laser_Interferometer_Space_Antenna.
• Gravitational-wave_astronomy wikiPageWikiLink Extreme_mass_ratio_inspiral.
• Gravitational-wave_astronomy wikiPageWikiLink Field_of_view.
• Gravitational-wave_astronomy wikiPageWikiLink GEO600.
• Gravitational-wave_astronomy wikiPageWikiLink GEO_600.
• Gravitational-wave_astronomy wikiPageWikiLink Galactic_Center.
• Gravitational-wave_astronomy wikiPageWikiLink Galactic_Centre.
• Gravitational-wave_astronomy wikiPageWikiLink Gamma-ray_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Gamma-ray_burst.
• Gravitational-wave_astronomy wikiPageWikiLink Gamma_ray_burst.
• Gravitational-wave_astronomy wikiPageWikiLink General_relativity.
• Gravitational-wave_astronomy wikiPageWikiLink Gravitational-wave_detector.
• Gravitational-wave_astronomy wikiPageWikiLink Gravitational-wave_observatory.
• Gravitational-wave_astronomy wikiPageWikiLink Gravitational_wave.
• Gravitational-wave_astronomy wikiPageWikiLink Gravitational_waves.
• Gravitational-wave_astronomy wikiPageWikiLink Hanford_Site.
• Gravitational-wave_astronomy wikiPageWikiLink Inflation_(cosmology).
• Gravitational-wave_astronomy wikiPageWikiLink Inflationary_epoch.
• Gravitational-wave_astronomy wikiPageWikiLink International_Pulsar_Timing_Array.
• Gravitational-wave_astronomy wikiPageWikiLink Joseph_Hooton_Taylor,_Jr..
• Gravitational-wave_astronomy wikiPageWikiLink KAGRA.
• Gravitational-wave_astronomy wikiPageWikiLink Kamioka_Observatory.
• Gravitational-wave_astronomy wikiPageWikiLink LIGO.
• Gravitational-wave_astronomy wikiPageWikiLink Laser_Interferometer_Space_Antenna.
• Gravitational-wave_astronomy wikiPageWikiLink Livingston,_Louisiana.
• Gravitational-wave_astronomy wikiPageWikiLink MIT.
• Gravitational-wave_astronomy wikiPageWikiLink Massachusetts_Institute_of_Technology.
• Gravitational-wave_astronomy wikiPageWikiLink Michelson_interferometer.
• Gravitational-wave_astronomy wikiPageWikiLink Microwave.
• Gravitational-wave_astronomy wikiPageWikiLink Multi-messenger_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Neutrino_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Neutron_star.
• Gravitational-wave_astronomy wikiPageWikiLink Nobel_Prize_in_Physics.
• Gravitational-wave_astronomy wikiPageWikiLink North_American_Nanohertz_Observatory_for_Gravitational_Waves.
• Gravitational-wave_astronomy wikiPageWikiLink Observational_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink PSR_B1913+16.
• Gravitational-wave_astronomy wikiPageWikiLink PSR_J0737-3039.
• Gravitational-wave_astronomy wikiPageWikiLink Parkes_Observatory.
• Gravitational-wave_astronomy wikiPageWikiLink Phase_transition.
• Gravitational-wave_astronomy wikiPageWikiLink Polarization_(waves).
• Gravitational-wave_astronomy wikiPageWikiLink Pulsar_timing_array.
• Gravitational-wave_astronomy wikiPageWikiLink Radio_astronomy.
• Gravitational-wave_astronomy wikiPageWikiLink Recombination_(cosmology).
• Gravitational-wave_astronomy wikiPageWikiLink Russell_Alan_Hulse.
• Gravitational-wave_astronomy wikiPageWikiLink Sarstedt.
• Gravitational-wave_astronomy wikiPageWikiLink Scattering.
• Gravitational-wave_astronomy wikiPageWikiLink Solar_mass.
• Gravitational-wave_astronomy wikiPageWikiLink Solar_neutrino.
• Gravitational-wave_astronomy wikiPageWikiLink Spacetime.
• Gravitational-wave_astronomy wikiPageWikiLink Special_relativity.
• Gravitational-wave_astronomy wikiPageWikiLink Speed_of_light.
• Gravitational-wave_astronomy wikiPageWikiLink Stellar_black_hole.
• Gravitational-wave_astronomy wikiPageWikiLink Sun.
• Gravitational-wave_astronomy wikiPageWikiLink Supermassive_black_hole.
• Gravitational-wave_astronomy wikiPageWikiLink Supernova.
• Gravitational-wave_astronomy wikiPageWikiLink Telescope.
• Gravitational-wave_astronomy wikiPageWikiLink Type_II_supernova.
• Gravitational-wave_astronomy wikiPageWikiLink Universe.
• Gravitational-wave_astronomy wikiPageWikiLink University_of_Tokyo.

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