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All Articles Tagged As: gravitational waves
 | Einstein wrote about them, and we're still looking for them -- gravitational waves, which are small ripples in the fabric of space-time, that many consider to be the sounds of our universe.
Just as sound complements vision in our daily life, gravitational waves will complement our view of the universe taken by standard telescopes.
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 | White dwarfs are the burned-out cores of stars like our sun. Astronomers have discovered a pair of white dwarfs spiraling into one another at breakneck speeds. Today, these white dwarfs are so near they make a complete orbit in just 13 minutes, but they are gradually slipping closer together. About 900,000 years from now -- a blink of an eye in astronomical time -- they will merge and possibly explode as a supernova. ...> Full Article |
 | A pair of neutron stars spiraling toward each other until they merge in a violent explosion should produce detectable gravitational waves. A new study led by an undergraduate at UC Santa Cruz predicts for the first time where such mergers are likely to occur in the local galactic neighborhood. ...> Full Article |
Using computer models, astrophysicists from Rochester Institute of Technology and Johns Hopkins University are creating a detailed blueprint that will guide scientists searching for supermassive black holes using ordinary visible light and existing telescopes. Simulated models of these mergers will also aid the discovery of gravitational waves, testing Einstein's theory of general relativity.
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The National Research Council has strongly recommended the Laser Interferometer Space Antenna (LISA) as one of NASA's next two major space missions, to start in 2016 in collaboration with the European Space Agency. LISA will study the universe in a manner different from any other space observatory, by observing gravitational waves. The recommendation was announced Aug. 13 in a press conference at the Keck Center of the National Academies in Washington, D.C.
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 | Much like ripples moving across a pond, gravitational waves waves stretch the fabric of space itself as they pass by. If detected, these elusive waves could provide an unprecedented view of the earliest moments of our universe. Arizona State University theoretical physicist and cosmologist Lawrence Krauss and researchers from the University of Chicago and Fermi National Laboratory explore the most likely detection method of these waves. ...> Full Article |
 | An historic milestone was reached recently in Australia's bid to host the Square Kilometre Array telescope -- a future international radio telescope that will be the world's largest and most sensitive. ...> Full Article |
 | Astronomers using ESO's Very Large Telescope have detected, in another galaxy, a stellar-mass black hole much farther away than any other previously known. With a mass above fifteen times that of the Sun, this is also the second most massive stellar-mass black hole ever found. It is entwined with a star that will soon become a black hole itself. ...> Full Article |
 | A breakthrough in discovering new millisecond pulsars is providing astronomers a greatly improved capability to use those natural cosmic tools to make the first direct detections of gravitational waves. ...> Full Article |
 | A significant advance in our understanding of the early evolution of the universe has been achieved by a team of scientists associated with the LIGO and Virgo scientific collaborations. The research has put new constraints on the details of how the universe looked in its earliest moments, and has discovered the most stringent limits yet on the amount of gravitational waves that could have come from the Big Bang. ...> Full Article |
Results set new limits on gravitational waves that could have come from the Big Bang, and begin to constrain current theories about universe formation
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 | The international QUIET collaboration will deploy a new gravity-wave probe in June. QUIET's goal: detect remnants of the radiation emitted at the earliest moments of the universe, when gravity waves rippled through the very fabric of space-time itself. Gravity waves have been called the smoking gun of cosmic inflation, when space expanded faster than the speed of light a tiny fraction of a second following the big bang. ...> Full Article |
More than 200,000 people have signed up for the project and donated time on their computers to search gravitational wave data for signals from unknown pulsars.
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Scientists too showcase their exciting work looking at Einstein's general theory of relativity, black holes and gravitational waves.
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 | In one of the first significant scientific findings from a huge collaborative effort to detect gravitational waves, the team operating the Laser Interferometer Gravity-wave Observatory (LIGO) is reporting this week that the pulsar at the center of the Crab Nebula must have an extremely smooth surface. ...> Full Article |
 | Like a celestial top, the spinning neutron star known as the Crab Pulsar is slowing, a phenomenon that astronomers have yet to fully understand. ...> Full Article |
 | Scientists hope that a new supercomputer being built by Syracuse University's Department of Physics may help them identify the sound of a celestial black hole. The supercomputer, dubbed SUGAR (SU Gravitational and Relativity Cluster), will soon receive massive amounts of data from the California Institute of Technology (Caltech) that was collected over a two-year period at the Laser Interferometer Gravitational-Wave Observatory (LIGO). ...> Full Article |
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