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    Gravitational-wave astronomy

    Gravitational-wave astronomy is a subfield of astronomy concerned with the detection and study of gravitational waves emitted by astrophysical sources. Gravitational waves are minute distortions or ripples in spacetime caused by the acceleration of massive objects. They are produced by cataclysmic events such as the merger of binary black holes, the coalescence of binary neutron stars, supernova explosions and processes including those of the early universe shortly after the Big Bang. Studying them offers a new way to observe the universe, providing valuable insights into the behavior of matter under extreme conditions. Similar to electromagnetic radiation which involves transport of energy via propagation of electromagnetic field fluctuations, gravitational radiation involves fluctuations of the relatively weaker gravitational field. Wikipedia

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  2. cfa.harvard.edu

    The newest branch of astronomy doesn't rely on light. Instead, it measures gravitational waves: tiny ripples in the structure of spacetime created by colliding black holes, neutron stars, or other powerful cosmic events. Gravitational wave astronomy allows us to probe a new part of the unseen universe, with its own challenges and knowledge we can't get other ways.
  3. The past five years have witnessed a revolution in astronomy. The direct detection of gravitational waves (GW) emitted from the binary black hole (BBH) merger GW150914 (Fig. 1) by the Advanced ...
    Author:M. Bailes, B. K. Berger, P. R. Brady, M. Branchesi, K. Danzmann, K. Danzmann, M. Evans, K. Holley-Bo...Published:2021
  4. astrobites.org

    Nov 8, 2023Gravitational wave astronomy has already been awarded 2 Nobel Prizes (indirect detection in 1993 and direct detection in 2017). With the groundbreaking announcement of the detection of the gravitational wave background, we are in the midst of an exciting era of low-frequency gravitational wave astronomy! On the higher frequency end of the ...
  5. lisa.nasa.gov

    the field of gravitational-wave astronomy as a whole as we enter the coming decade, and we will place the specific contributions from a future space-based gravitational-wave observatory within this context. 1. Introduction: The field of gravitational-wave (GW) astrophysics has witnessed tremendous progress in the past
  6. astronomy.com

    Jun 29, 2023The universe is continuously rippling with gravitational waves, a 15-year survey has reported. Using pulsars as distant beacons and radio telescopes to plumb the galaxy, a massive collaboration of ...
  7. en.wikipedia.org

    Gravitational-wave astronomy has the advantage that, unlike electromagnetic radiation, gravitational waves are not affected by intervening matter. Sources that can be studied this way include binary star systems composed of white dwarfs , neutron stars , [ 8 ] [ 9 ] and black holes ; events such as supernovae ; and the formation of the early ...
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